Create .eslintignore

Added a section for Obsidian with a note about upcoming features.

.eslintignore

@@ -0,0 +1 @@
+src/

.gitignore

@@ -1,3 +1,5 @@
 /node_modules
 .DS_Store
 /dist/birb.bundled.js
+obsidian-test.sh
+build-cache.json

LICENSE

@@ -0,0 +1,373 @@
+Mozilla Public License Version 2.0
+==================================
+
+1. Definitions
+--------------
+
+1.1. "Contributor"
+    means each individual or legal entity that creates, contributes to
+    the creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+    means the combination of the Contributions of others (if any) used
+    by a Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+    means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+    means Source Code Form to which the initial Contributor has attached
+    the notice in Exhibit A, the Executable Form of such Source Code
+    Form, and Modifications of such Source Code Form, in each case
+    including portions thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+    means
+
+    (a) that the initial Contributor has attached the notice described
+        in Exhibit B to the Covered Software; or
+
+    (b) that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the
+        terms of a Secondary License.
+
+1.6. "Executable Form"
+    means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+    means a work that combines Covered Software with other material, in
+    a separate file or files, that is not Covered Software.
+
+1.8. "License"
+    means this document.
+
+1.9. "Licensable"
+    means having the right to grant, to the maximum extent possible,
+    whether at the time of the initial grant or subsequently, any and
+    all of the rights conveyed by this License.
+
+1.10. "Modifications"
+    means any of the following:
+
+    (a) any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered
+        Software; or
+
+    (b) any new file in Source Code Form that contains any Covered
+        Software.
+
+1.11. "Patent Claims" of a Contributor
+    means any patent claim(s), including without limitation, method,
+    process, and apparatus claims, in any patent Licensable by such
+    Contributor that would be infringed, but for the grant of the
+    License, by the making, using, selling, offering for sale, having
+    made, import, or transfer of either its Contributions or its
+    Contributor Version.
+
+1.12. "Secondary License"
+    means either the GNU General Public License, Version 2.0, the GNU
+    Lesser General Public License, Version 2.1, the GNU Affero General
+    Public License, Version 3.0, or any later versions of those
+    licenses.
+
+1.13. "Source Code Form"
+    means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+    means an individual or a legal entity exercising rights under this
+    License. For legal entities, "You" includes any entity that
+    controls, is controlled by, or is under common control with You. For
+    purposes of this definition, "control" means (a) the power, direct
+    or indirect, to cause the direction or management of such entity,
+    whether by contract or otherwise, or (b) ownership of more than
+    fifty percent (50%) of the outstanding shares or beneficial
+    ownership of such entity.
+
+2. License Grants and Conditions
+--------------------------------
+
+2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+(a) under intellectual property rights (other than patent or trademark)
+    Licensable by such Contributor to use, reproduce, make available,
+    modify, display, perform, distribute, and otherwise exploit its
+    Contributions, either on an unmodified basis, with Modifications, or
+    as part of a Larger Work; and
+
+(b) under Patent Claims of such Contributor to make, use, sell, offer
+    for sale, have made, import, and otherwise transfer either its
+    Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+(a) for any code that a Contributor has removed from Covered Software;
+    or
+
+(b) for infringements caused by: (i) Your and any other third party's
+    modifications of Covered Software, or (ii) the combination of its
+    Contributions with other software (except as part of its Contributor
+    Version); or
+
+(c) under Patent Claims infringed by Covered Software in the absence of
+    its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+3. Responsibilities
+-------------------
+
+3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+(a) such Covered Software must also be made available in Source Code
+    Form, as described in Section 3.1, and You must inform recipients of
+    the Executable Form how they can obtain a copy of such Source Code
+    Form by reasonable means in a timely manner, at a charge no more
+    than the cost of distribution to the recipient; and
+
+(b) You may distribute such Executable Form under the terms of this
+    License, or sublicense it under different terms, provided that the
+    license for the Executable Form does not attempt to limit or alter
+    the recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+---------------------------------------------------
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: (a) comply with
+the terms of this License to the maximum extent possible; and (b)
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+5. Termination
+--------------
+
+5.1. The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated (a) provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and (b) on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+************************************************************************
+*                                                                      *
+*  6. Disclaimer of Warranty                                           *
+*  -------------------------                                           *
+*                                                                      *
+*  Covered Software is provided under this License on an "as is"       *
+*  basis, without warranty of any kind, either expressed, implied, or  *
+*  statutory, including, without limitation, warranties that the       *
+*  Covered Software is free of defects, merchantable, fit for a        *
+*  particular purpose or non-infringing. The entire risk as to the     *
+*  quality and performance of the Covered Software is with You.        *
+*  Should any Covered Software prove defective in any respect, You     *
+*  (not any Contributor) assume the cost of any necessary servicing,   *
+*  repair, or correction. This disclaimer of warranty constitutes an   *
+*  essential part of this License. No use of any Covered Software is   *
+*  authorized under this License except under this disclaimer.         *
+*                                                                      *
+************************************************************************
+
+************************************************************************
+*                                                                      *
+*  7. Limitation of Liability                                          *
+*  --------------------------                                          *
+*                                                                      *
+*  Under no circumstances and under no legal theory, whether tort      *
+*  (including negligence), contract, or otherwise, shall any           *
+*  Contributor, or anyone who distributes Covered Software as          *
+*  permitted above, be liable to You for any direct, indirect,         *
+*  special, incidental, or consequential damages of any character      *
+*  including, without limitation, damages for lost profits, loss of    *
+*  goodwill, work stoppage, computer failure or malfunction, or any    *
+*  and all other commercial damages or losses, even if such party      *
+*  shall have been informed of the possibility of such damages. This   *
+*  limitation of liability shall not apply to liability for death or   *
+*  personal injury resulting from such party's negligence to the       *
+*  extent applicable law prohibits such limitation. Some               *
+*  jurisdictions do not allow the exclusion or limitation of           *
+*  incidental or consequential damages, so this exclusion and          *
+*  limitation may not apply to You.                                    *
+*                                                                      *
+************************************************************************
+
+8. Litigation
+-------------
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+9. Miscellaneous
+----------------
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+10. Versions of the License
+---------------------------
+
+10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+Exhibit A - Source Code Form License Notice
+-------------------------------------------
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+  This Source Code Form is "Incompatible With Secondary Licenses", as
+  defined by the Mozilla Public License, v. 2.0.

README.md

@@ -1,8 +1,81 @@
-# Pocket Bird (Work in Progress!)
+# Pocket Bird
 
-This project is still being worked on, but if you wish to help me beta test it, join the [Discord](https://discord.gg/6yxE9prcNc) and  follow the installation instructions below!
+![License](https://img.shields.io/github/license/IdreesInc/Pocket-Bird)
+[![Chrome Web Store Version](https://img.shields.io/chrome-web-store/v/lbbdngkbbgaecefacpnhnhleggabghak)](https://chromewebstore.google.com/detail/pocket-bird/lbbdngkbbgaecefacpnhnhleggabghak)
+[![Mozilla Add-on Version](https://img.shields.io/amo/v/pocket-bird)](https://addons.mozilla.org/en-US/firefox/addon/pocket-bird/)
+[![Discord](https://img.shields.io/discord/1398471368403583120?logo=discord&logoColor=fff&label=discord&color=5865F2)](https://discord.gg/6yxE9prcNc)
+
+![](images/preview.png)
+
+It's a pet bird that hops around your computer, what more could you want?
+
+### Get it for [Google Chrome](https://chromewebstore.google.com/detail/pocket-bird/lbbdngkbbgaecefacpnhnhleggabghak)
+
+### Get it for [Mozilla Firefox](https://addons.mozilla.org/en-US/firefox/addon/pocket-bird/)
+
+#### Join the [Discord](https://discord.gg/6yxE9prcNc) to help me beta test new features and suggest ideas!
+
+## Features
+
+- A cute little pixel art bird hops around your apps and websites
+- Collect rare falling feathers to unlock over 10+ different species of birds
+- Add sticky notes that stay on the page even after you refresh
+- And most importantly, you can pet the bird!
+
+## Adoption Guide
+
+### Google Chrome + Microsoft Edge
+
+1. Go to the [Chrome Web Store page](https://chromewebstore.google.com/detail/pocket-bird/lbbdngkbbgaecefacpnhnhleggabghak)
+2. Click "Add to Chrome" (or "Add to Edge" if using Microsoft Edge)
+3. Confirm any permission prompts that appear
+
+### Mozilla Firefox
+1. Go to the [Mozilla Add-ons page](https://addons.mozilla.org/en-US/firefox/addon/pocket-bird/)
+2. Click "Add to Firefox"
+3. Confirm any permission prompts that appear
+
+### Obsidian
+
+_Coming soon!_
+
+### Userscript
+
+*Note that this is mainly used for beta testing new features, installation via browser extension is recommended for the best experience.*
 
 1. Install [Tampermonkey](https://www.tampermonkey.net/) on your web browser
 2. Enable the Tampermonkey extension and give it the permissions requested
-3. Install my Pocket Bird script by going to this link and clicking install: [https://github.com/IdreesInc/Pocket-Bird/raw/refs/heads/main/dist/birb.user.js](https://github.com/IdreesInc/Pocket-Bird/raw/refs/heads/main/dist/birb.user.js)
+3. Install my Pocket Bird script by going to this link and clicking install: [https://github.com/IdreesInc/Pocket-Bird/raw/refs/heads/main/dist/userscript/birb.user.js](https://github.com/IdreesInc/Pocket-Bird/raw/refs/heads/main/dist/userscript/birb.user.js)
 4. Now any websites you visit will have a little bird hopping around!
+
+## FAQ
+
+### How do I pet the bird?
+
+Simply move your cursor back and forth over your bird until a heart appears! You can also click the bird to open the menu and pet it from there. There may even be a slightly greater chance of finding a feather when your bird is well loved...
+
+### How do I collect feathers?
+
+Feathers will occasionally fall from the top of your window. Clicking on a feather will add a new species to your field guide, allowing you to change the appearance of your pet!
+
+### How do I change my bird's appearance?
+
+Once you've unlocked new species by collecting feathers, you can change your bird's appearance by opening the Pocket Bird menu (via clicking the bird) and selecting "Field Guide".
+
+### How do I add sticky notes?
+
+Open the Pocket Bird menu by clicking the bird and select "Sticky Note". From there, you can add, edit, and delete notes that will stay on the page even after refreshing.
+
+### How do I hide the bird?
+
+Open the Pocket Bird menu by clicking the bird and select "Settings". From there, you can toggle the bird's visibility on and off temporarily on the current page.
+
+### Why does Pocket Bird need permission to read and change my data on websites I visit?
+
+If you are running Pocket bird on a browser, the extension needs these permissions in order to insert the bird and sticky notes into your webpages. Pocket Bird does not collect any of your data or browsing history and all data is stored locally on your device!
+
+## Getting in Touch
+
+If you'd like to get in touch, check out the [Discord](https://discord.gg/6yxE9prcNc) to suggest features, report bugs, and stay updated on development!
+
+Also feel free to check out my other open-source projects like [Monocraft](https://github.com/IdreesInc/Monocraft), [PicoChat](https://github.com/IdreesInc/PicoChat), and more on [my website](https://idreesinc.com/)!

build.js

@@ -1,84 +1,101 @@
 // @ts-check
 
 import { rollup } from 'rollup';
-import { readFileSync, writeFileSync, mkdirSync, unlinkSync } from 'fs';
+import { readFileSync, writeFileSync, mkdirSync, unlinkSync, cpSync, createWriteStream } from 'fs';
+import archiver from 'archiver';
+
+// Path constants
+const BUILD_CACHE_PATH = "./build-cache.json";
+const SRC_DIR = "./src";
+const SPRITES_DIR = "./sprites";
+const IMAGES_DIR = "./images";
+const FONTS_DIR = "./fonts";
+const DIST_DIR = "./dist";
+
+const BROWSER_MANIFEST = "./platform-specific/extension/manifest.json";
+const OBSIDIAN_MANIFEST = "./platform-specific/obsidian/manifest.json";
+const USERSCRIPT_HEADER = "./platform-specific/userscript/header.txt"; 
+const OBSIDIAN_WRAPPER = "./platform-specific/obsidian/wrapper.js";
+
+const USERSCRIPT_DIR = DIST_DIR + "/userscript";
+const EXTENSION_DIR = DIST_DIR + "/extension";
+const OBSIDIAN_DIR = DIST_DIR + "/obsidian";
+
+const STYLESHEET_PATH = SRC_DIR + "/stylesheet.css";
+const APPLICATION_ENTRY = SRC_DIR + "/application.js";
+const BUNDLED_OUTPUT = DIST_DIR + "/birb.bundled.js";
+const BIRB_OUTPUT = DIST_DIR + "/birb.js";
+
+const MONOCRAFT_URL = "https://cdn.jsdelivr.net/gh/idreesinc/Monocraft@99b32ab40612ff2533a69d8f14bd8b3d9e604456/dist/Monocraft.otf";
+
+const VERSION_KEY = "__VERSION__";
+const STYLESHEET_KEY = "___STYLESHEET___";
+const MONOCRAFT_SRC_KEY = "__MONOCRAFT_SRC__";
+const CODE_KEY = "__CODE__";
 
 const spriteSheets = [
 	{
 		key: "__SPRITE_SHEET__",
-		path: "./sprites/birb.png"
+		path: SPRITES_DIR + "/birb.png"
 	},
 	{
 		key: "__FEATHER_SPRITE_SHEET__",
-		path: "./sprites/feather.png"
+		path: SPRITES_DIR + "/feather.png"
 	}
 ];
 
-const STYLESHEET_PATH = "./src/stylesheet.css";
+/** @type {Record<string, any>} */
-const STYLESHEET_KEY = "___STYLESHEET___";
+let buildCache = {};
+try {
+	const cacheContent = readFileSync(BUILD_CACHE_PATH, 'utf8');
+	buildCache = JSON.parse(cacheContent);
+} catch (e) {
+	console.warn("No build cache found, starting fresh");
+}
 
 const now = new Date();
 const versionDate = `${now.getFullYear()}.${now.getMonth() + 1}.${now.getDate()}`;
 
-// Get current build number from manifest.json
+// Get current build number from the build cache
 let buildNumber = 0;
-try {
+
-	const manifest = JSON.parse(readFileSync('manifest.json', 'utf8'));
+if (buildCache.version && buildCache.version.startsWith(versionDate)) {
-	if (manifest.version) {
+	// Same day, increment build number
-		if (manifest.version.startsWith(versionDate)) {
+	const parts = buildCache.version.split('.');
-			// Same day, increment build number
+	if (parts.length === 4) {
-			const parts = manifest.version.split('.');
+		buildNumber = parseInt(parts[3], 10) + 1;
-			if (parts.length === 4) {
-				buildNumber = parseInt(parts[3], 10) + 1;
-			}
-		}
 	}
-} catch (e) {
-	console.error("Could not read version from manifest.json");
-	throw e;
 }
 
-// Update manifest.json with new version
 const version = `${versionDate}.${buildNumber}`;
-try {
-	const manifest = JSON.parse(readFileSync('manifest.json', 'utf8'));
-	manifest.version = version;
-	writeFileSync('manifest.json', JSON.stringify(manifest, null, 4), 'utf8');
-} catch (e) {
-	console.error("Could not update version in manifest.json");
-	throw e;
-}
 
-const userScriptHeader =
+// Update build cache
-`// ==UserScript==
+buildCache.version = version;
-// @name         Pocket Bird
+writeFileSync(BUILD_CACHE_PATH, JSON.stringify(buildCache), 'utf8');
-// @namespace    https://idreesinc.com
-// @version      ${version}
-// @description  birb
-// @author       Idrees
-// @downloadURL  https://github.com/IdreesInc/Pocket-Bird/raw/refs/heads/main/dist/birb.user.js
-// @updateURL    https://github.com/IdreesInc/Pocket-Bird/raw/refs/heads/main/dist/birb.user.js
-// @match        *://*/*
-// @grant        GM_setValue
-// @grant        GM_getValue
-// @grant        GM_deleteValue
-// ==/UserScript==
 
-`;
+// =============================================
+// Build JavaScript function
+// =============================================
 
 // Bundle with rollup
 const bundle = await rollup({
-	input: 'src/application.js',
+	input: APPLICATION_ENTRY,
 });
 
 await bundle.write({
-	file: 'dist/birb.bundled.js',
+	file: BUNDLED_OUTPUT,
 	format: 'iife',
 });
 
 await bundle.close();
 
-let birbJs = readFileSync('dist/birb.bundled.js', 'utf8');
+let birbJs = readFileSync(BUNDLED_OUTPUT, 'utf8');
+
+// Delete bundled file
+unlinkSync(BUNDLED_OUTPUT);
+
+// Replace version placeholder
+birbJs = birbJs.replaceAll(VERSION_KEY, version);
 
 // Compile and insert sprite sheets
 for (const spriteSheet of spriteSheets) {
@@ -88,14 +105,81 @@ for (const spriteSheet of spriteSheets) {
 
 // Insert stylesheet
 const stylesheetContent = readFileSync(STYLESHEET_PATH, 'utf8');
-birbJs = birbJs.replace(STYLESHEET_KEY, stylesheetContent);
+birbJs = birbJs.replace(STYLESHEET_KEY, stylesheetContent).replace(MONOCRAFT_SRC_KEY, MONOCRAFT_URL);
 
-// Build standard javascript file
-writeFileSync('./dist/birb.js', birbJs);
 
-// Delete bundled file
+// Write bundled JavaScript function
-unlinkSync('./dist/birb.bundled.js');
+writeFileSync(BIRB_OUTPUT, birbJs);
 
-// Build user script
+// =============================================
-const userScript = userScriptHeader + birbJs;
+// Build userscript
-writeFileSync('./dist/birb.user.js', userScript);
+// =============================================
+
+// Get userscript header
+const userScriptHeader = readFileSync(USERSCRIPT_HEADER, 'utf8').replaceAll(VERSION_KEY, version);
+
+mkdirSync(USERSCRIPT_DIR, { recursive: true });
+const userScript = userScriptHeader + "\n" + birbJs;
+writeFileSync(USERSCRIPT_DIR + '/birb.user.js', userScript);
+
+// =============================================
+// Build browser extension
+// =============================================
+
+mkdirSync(EXTENSION_DIR, { recursive: true });
+
+// Copy birb.js
+writeFileSync(EXTENSION_DIR + '/birb.js', birbJs);
+
+// Copy manifest.json
+let browserManifest = readFileSync(BROWSER_MANIFEST, 'utf8');
+browserManifest = browserManifest.replace(VERSION_KEY, version);
+writeFileSync(EXTENSION_DIR + '/manifest.json', browserManifest);
+
+// Copy icons folder
+mkdirSync(EXTENSION_DIR + '/images/icons', { recursive: true });
+cpSync(IMAGES_DIR + '/icons/transparent', EXTENSION_DIR + '/images/icons/transparent', { recursive: true });
+
+// Copy fonts folder
+mkdirSync(EXTENSION_DIR + '/fonts', { recursive: true });
+cpSync(FONTS_DIR, EXTENSION_DIR + '/fonts', { recursive: true });
+
+// Compress extension folder into zip
+const output = createWriteStream(DIST_DIR + "/extension.zip");
+const archive = archiver('zip');
+
+output.on('close', () => {
+	console.log(`Created zip file: ${archive.pointer()} total bytes`);
+});
+
+archive.on('error', (err) => {
+	throw err;
+});
+
+archive.pipe(output);
+archive.directory(EXTENSION_DIR + '/', false);
+archive.finalize();
+
+// =============================================
+// Build Obsidian plugin
+// =============================================
+
+mkdirSync(OBSIDIAN_DIR, { recursive: true });
+
+// Wrap birb.js with plugin boilerplate
+let obsidianPlugin = readFileSync(OBSIDIAN_WRAPPER, 'utf8').replace(VERSION_KEY, version).replace(CODE_KEY, birbJs);
+
+// Encode font to data URI since Obsidian plugins can't have external font files
+const monocraftFontData = readFileSync(FONTS_DIR + '/Monocraft.otf', 'base64');
+const monocraftDataUri = `data:font/otf;base64,${monocraftFontData}`;
+obsidianPlugin = obsidianPlugin.replace(MONOCRAFT_URL, monocraftDataUri);
+
+// Create main.js with plugin code
+writeFileSync(OBSIDIAN_DIR + '/main.js', obsidianPlugin);
+
+// Copy manifest.json
+let obsidianManifest = readFileSync(OBSIDIAN_MANIFEST, 'utf8');
+obsidianManifest = obsidianManifest.replace(/"version":\s*".*"/, `"version": "${version}"`);
+writeFileSync(OBSIDIAN_DIR + '/manifest.json', obsidianManifest);
+
+console.log(`Build complete: ${version}`);

dist/extension/manifest.json

@@ -0,0 +1,47 @@
+{
+    "manifest_version": 3,
+    "name": "Pocket Bird",
+    "description": "It's a pet bird in your browser, what more could you want?",
+    "version": "2025.11.14.205",
+    "homepage_url": "https://idreesinc.com",
+    "icons": {
+        "48": "images/icons/transparent/48x48x1.png",
+        "96": "images/icons/transparent/96x96x1.png",
+        "128": "images/icons/transparent/128x128x1.png"
+    },
+    "content_scripts": [
+        {
+            "matches": [
+                "<all_urls>"
+            ],
+            "js": [
+                "birb.js"
+            ]
+        }
+    ],
+    "permissions": [
+        "storage",
+        "activeTab"
+    ],
+    "web_accessible_resources": [
+        {
+            "resources": [
+                "images/*",
+                "fonts/Monocraft.otf"
+            ],
+            "matches": [
+                "<all_urls>"
+            ]
+        }
+    ],
+    "browser_specific_settings": {
+        "gecko": {
+            "id": "pocket-bird@idreesinc.com",
+            "data_collection_permissions": {
+                "required": [
+                    "none"
+                ]
+            }
+        }
+    }
+}

dist/obsidian/manifest.json

@@ -0,0 +1,10 @@
+{
+    "id": "pocket-bird",
+    "name": "Pocket Bird",
+    "version": "2025.11.14.205",
+    "minAppVersion": "0.15.0",
+    "description": "It's a pet bird in your Obsidian, what more could you want?",
+    "author": "Idrees Hassan",
+    "authorUrl": "https://idreesinc.com",
+    "isDesktopOnly": false
+}

manifest.json

@@ -1,36 +1,10 @@
 {
-    "manifest_version": 3,
+    "id": "pocket-bird",
     "name": "Pocket Bird",
-    "description": "It's a bird, in your browser. What more could you want?",
+    "version": "2025.11.14.205",
-    "version": "2025.10.26.402",
+    "minAppVersion": "0.15.0",
-    "homepage_url": "https://idreesinc.com",
+    "description": "Add a pet bird to fly around your notes and keep you company!",
-    "content_scripts": [
+    "author": "Idrees Hassan",
-        {
+    "authorUrl": "https://idreesinc.com",
-            "matches": [
+    "isDesktopOnly": false
-                "<all_urls>"
-            ],
-            "js": [
-                "./dist/birb.js"
-            ]
-        }
-    ],
-    "permissions": [
-        "storage",
-        "activeTab"
-    ],
-    "web_accessible_resources": [
-        {
-            "resources": [
-                "images/*"
-            ],
-            "matches": [
-                "<all_urls>"
-            ]
-        }
-    ],
-    "browser_specific_settings": {
-        "gecko": {
-            "id": "birb@idreesinc.com"
-        }
-    }
 }

package.json

@@ -7,9 +7,10 @@
   "type": "module",
   "scripts": {
     "build": "node build.js",
-    "dev": "nodemon --watch src --watch stylesheet.css --watch build.js --exec \"npm run build\""
+    "dev": "nodemon --watch src --watch package.json --watch stylesheet.css --watch build.js --watch obsidian-manifest.json --watch browser-manifest.json --exec \"npm run build\""
   },
   "devDependencies": {
+    "archiver": "^7.0.1",
     "nodemon": "^3.1.10",
     "rollup": "^4.52.5"
   }

platform-specific/extension/manifest.json

@@ -0,0 +1,47 @@
+{
+    "manifest_version": 3,
+    "name": "Pocket Bird",
+    "description": "It's a pet bird in your browser, what more could you want?",
+    "version": "__VERSION__",
+    "homepage_url": "https://idreesinc.com",
+    "icons": {
+        "48": "images/icons/transparent/48x48x1.png",
+        "96": "images/icons/transparent/96x96x1.png",
+        "128": "images/icons/transparent/128x128x1.png"
+    },
+    "content_scripts": [
+        {
+            "matches": [
+                "<all_urls>"
+            ],
+            "js": [
+                "birb.js"
+            ]
+        }
+    ],
+    "permissions": [
+        "storage",
+        "activeTab"
+    ],
+    "web_accessible_resources": [
+        {
+            "resources": [
+                "images/*",
+                "fonts/Monocraft.otf"
+            ],
+            "matches": [
+                "<all_urls>"
+            ]
+        }
+    ],
+    "browser_specific_settings": {
+        "gecko": {
+            "id": "pocket-bird@idreesinc.com",
+            "data_collection_permissions": {
+                "required": [
+                    "none"
+                ]
+            }
+        }
+    }
+}

platform-specific/obsidian/manifest.json

@@ -0,0 +1,10 @@
+{
+    "id": "pocket-bird",
+    "name": "Pocket Bird",
+    "version": "__VERSION__",
+    "minAppVersion": "0.15.0",
+    "description": "It's a pet bird in your Obsidian, what more could you want?",
+    "author": "Idrees Hassan",
+    "authorUrl": "https://idreesinc.com",
+    "isDesktopOnly": false
+}

platform-specific/obsidian/wrapper.js

@@ -0,0 +1,15 @@
+const { Plugin, Notice } = require('obsidian');
+module.exports = class PocketBird extends Plugin {
+	onload() {
+		console.log("Loading Pocket Bird version __VERSION__...");
+		const OBSIDIAN_PLUGIN = this;
+		__CODE__
+		console.log("Pocket Bird loaded!");
+	}
+
+	onunload() {
+		// Remove the birb when the plugin is unloaded
+		document.getElementById('birb')?.remove();
+		console.log('Pocket Bird unloaded!');
+	}
+};

platform-specific/userscript/header.txt

@@ -0,0 +1,13 @@
+// ==UserScript==
+// @name         Pocket Bird
+// @namespace    https://idreesinc.com
+// @version      __VERSION__
+// @description  It's a pet bird in your browser, what more could you want?
+// @author       Idrees
+// @downloadURL  https://github.com/IdreesInc/Pocket-Bird/raw/refs/heads/main/dist/userscript/birb.user.js
+// @updateURL    https://github.com/IdreesInc/Pocket-Bird/raw/refs/heads/main/dist/userscript/birb.user.js
+// @match        *://*/*
+// @grant        GM_setValue
+// @grant        GM_getValue
+// @grant        GM_deleteValue
+// ==/UserScript==

preview/index.html

@@ -12,7 +12,7 @@
         }
 
         #spacer {
-            height: 100vh;
+            height: 300vh;
         }
     </style>
 </head>

src/Frame.js

@@ -1,5 +1,5 @@
 import { Directions } from './shared.js';
-import { SPRITE, BirdType } from './sprites.js';
+import { Sprite, BirdType } from './sprites.js';
 import Layer from './layer.js';
 
 class Frame {
@@ -25,7 +25,7 @@ class Frame {
 			this.pixels = layers[0].pixels.map(row => row.slice());
 			// Pad from top with transparent pixels
 			while (this.pixels.length < maxHeight) {
-				this.pixels.unshift(new Array(this.pixels[0].length).fill(SPRITE.TRANSPARENT));
+				this.pixels.unshift(new Array(this.pixels[0].length).fill(Sprite.TRANSPARENT));
 			}
 			// Combine layers
 			for (let i = 1; i < layers.length; i++) {
@@ -34,7 +34,7 @@ class Frame {
 					let topMargin = maxHeight - layerPixels.length;
 					for (let y = 0; y < layerPixels.length; y++) {
 						for (let x = 0; x < layerPixels[y].length; x++) {
-							this.pixels[y + topMargin][x] = layerPixels[y][x] !== SPRITE.TRANSPARENT ? layerPixels[y][x] : this.pixels[y + topMargin][x];
+							this.pixels[y + topMargin][x] = layerPixels[y][x] !== Sprite.TRANSPARENT ? layerPixels[y][x] : this.pixels[y + topMargin][x];
 						}
 					}
 				}
@@ -58,6 +58,9 @@ class Frame {
 	 * @param {number} canvasPixelSize
 	 */
 	draw(ctx, direction, canvasPixelSize, species) {
+		// Clear the canvas before drawing the new frame
+		ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
+		
 		const pixels = this.getPixels(species?.tags[0]);
 		for (let y = 0; y < pixels.length; y++) {
 			const row = pixels[y];

src/anim.js

@@ -11,12 +11,49 @@ class Anim {
 		this.frames = frames;
 		this.durations = durations;
 		this.loop = loop;
+		this.lastFrameIndex = -1;
+		this.lastDirection = null;
+		this.lastTimeStart = null;
 	}
 
 	getAnimationDuration() {
 		return this.durations.reduce((a, b) => a + b, 0);
 	}
 
+	/**
+	 * Get the current frame index based on elapsed time
+	 * @param {number} time The elapsed time since animation start
+	 * @returns {number} The index of the current frame
+	 */
+	getCurrentFrameIndex(time) {
+		let totalDuration = 0;
+		for (let i = 0; i < this.durations.length; i++) {
+			totalDuration += this.durations[i];
+			if (time < totalDuration) {
+				return i;
+			}
+		}
+		return this.frames.length - 1;
+	}
+
+	/**
+	 * Clear the cached frame state
+	 */
+	#clearCache() {
+		this.lastFrameIndex = -1;
+		this.lastDirection = null;
+	}
+
+	/**
+	 * Check if the frame needs to be redrawn
+	 * @param {number} frameIndex The current frame index
+	 * @param {number} direction The current direction
+	 * @returns {boolean} Whether the frame needs to be redrawn
+	 */
+	#shouldRedraw(frameIndex, direction) {
+		return frameIndex !== this.lastFrameIndex || direction !== this.lastDirection;
+	}
+
 	/**
 	 * @param {CanvasRenderingContext2D} ctx
 	 * @param {number} direction
@@ -26,22 +63,29 @@ class Anim {
 	 * @returns {boolean} Whether the animation is complete
 	 */
 	draw(ctx, direction, timeStart, canvasPixelSize, species) {
+		// Reset cache if animation was restarted
+		if (this.lastTimeStart !== timeStart) {
+			this.#clearCache();
+			this.lastTimeStart = timeStart;
+		}
+
 		let time = Date.now() - timeStart;
 		const duration = this.getAnimationDuration();
+		
 		if (this.loop) {
 			time %= duration;
 		}
-		let totalDuration = 0;
+
-		for (let i = 0; i < this.durations.length; i++) {
+		const currentFrameIndex = this.getCurrentFrameIndex(time);
-			totalDuration += this.durations[i];
+		
-			if (time < totalDuration) {
+		if (this.#shouldRedraw(currentFrameIndex, direction)) {
-				this.frames[i].draw(ctx, direction, canvasPixelSize, species);
+			this.frames[currentFrameIndex].draw(ctx, direction, canvasPixelSize, species);
-				return false;
+			this.lastFrameIndex = currentFrameIndex;
-			}
+			this.lastDirection = direction;
 		}
-		// Draw the last frame if the animation is complete
+		
-		this.frames[this.frames.length - 1].draw(ctx, direction, canvasPixelSize, species);
+		// Return whether animation is complete (for non-looping animations)
-		return true;
+		return !this.loop && time >= duration;
 	}
 }
 

src/application.js

@@ -2,6 +2,7 @@ import Frame from './frame.js';
 import Layer from './layer.js';
 import Anim from './anim.js';
 import { Birb, Animations } from './birb.js';
+import { getContext, ObsidianContext } from './context.js';
 
 import {
 	Directions,
@@ -15,10 +16,11 @@ import {
 	log,
 	debug,
 	error,
-	getLayer
+	getLayer,
+	getWindowHeight
 } from './shared.js';
 import {
-	SPRITE,
+	Sprite,
 	SPRITE_SHEET_COLOR_MAP,
 	SPECIES
 } from './sprites.js';
@@ -29,6 +31,7 @@ import {
 } from './stickyNotes.js';
 import {
 	MenuItem,
+	ConditionalMenuItem,
 	DebugMenuItem,
 	Separator,
 	insertMenu,
@@ -80,18 +83,19 @@ const DEFAULT_BIRD = "bluebird";
 
 // Birb movement
 const HOP_SPEED = 0.07;
-const FLY_SPEED = isMobile() ? 0.125 : 0.25;
+const FLY_SPEED = isMobile() ? 0.175 : 0.25;
-const HOP_DISTANCE = 45;
+const HOP_DISTANCE = 35;
 
 // Timing constants (in milliseconds)
 const UPDATE_INTERVAL = 1000 / 60; // 60 FPS
-const AFK_TIME = isDebug() ? 0 : 1000 * 30;
+const AFK_TIME = isDebug() ? 0 : 1000 * 5;
 const PET_BOOST_DURATION = 1000 * 60 * 5;
 const PET_MENU_COOLDOWN = 1000;
-const URL_CHECK_INTERVAL = 500;
+const URL_CHECK_INTERVAL = 150;
+const HOP_DELAY = 500;
 
 // Random event chances per tick
-const HOP_CHANCE = 1 / (60 * 3); // Every 3 seconds
+const HOP_CHANCE = 1 / (60 * 2.5); // Every 2.5 seconds
 const FOCUS_SWITCH_CHANCE = 1 / (60 * 20); // Every 20 seconds
 const FEATHER_CHANCE = 1 / (60 * 60 * 60 * 2); // Every 2 hours
 
@@ -101,7 +105,6 @@ const PET_FEATHER_BOOST = 2;
 
 // Focus element constraints
 const MIN_FOCUS_ELEMENT_WIDTH = 100;
-const MIN_FOCUS_ELEMENT_TOP = 80;
 
 /** @type {Partial<Settings>} */
 let userSettings = {};
@@ -138,7 +141,7 @@ function loadSpriteSheetPixels(dataUri, templateColors = true) {
 					const b = pixels[index + 2];
 					const a = pixels[index + 3];
 					if (a === 0) {
-						row.push(SPRITE.TRANSPARENT);
+						row.push(Sprite.TRANSPARENT);
 						continue;
 					}
 					const hex = `#${((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1)}`;
@@ -148,7 +151,7 @@ function loadSpriteSheetPixels(dataUri, templateColors = true) {
 					}
 					if (SPRITE_SHEET_COLOR_MAP[hex] === undefined) {
 						error(`Unknown color: ${hex}`);
-						row.push(SPRITE.TRANSPARENT);
+						row.push(Sprite.TRANSPARENT);
 					}
 					row.push(SPRITE_SHEET_COLOR_MAP[hex]);
 				}
@@ -191,8 +194,8 @@ Promise.all([
 	const menuItems = [
 		new MenuItem(`Pet ${birdBirb()}`, pet),
 		new MenuItem("Field Guide", insertFieldGuide),
-		new MenuItem("Sticky Note", () => createNewStickyNote(stickyNotes, save, deleteStickyNote)),
+		new ConditionalMenuItem("Sticky Note", () => createNewStickyNote(stickyNotes, save, deleteStickyNote), () => getContext().areStickyNotesEnabled()),
-		new MenuItem(`Hide ${birdBirb()}`, hideBirb),
+		new MenuItem(`Hide ${birdBirb()}`, () => birb.setVisible(false)),
 		new DebugMenuItem("Freeze/Unfreeze", () => {
 			frozen = !frozen;
 		}),
@@ -202,6 +205,9 @@ Promise.all([
 				unlockBird(type);
 			}
 		}),
+		new DebugMenuItem("Add Feather", () => {
+			activateFeather();
+		}),
 		new DebugMenuItem("Disable Debug", () => {
 			setDebug(false);
 		}),
@@ -215,8 +221,17 @@ Promise.all([
 		new MenuItem("Toggle Birb Mode", () => {
 			userSettings.birbMode = !userSettings.birbMode;
 			save();
-			insertModal(`${birdBirb()} Mode`, `Your ${birdBirb().toLowerCase()} shall now be referred to as "${birdBirb()}"${userSettings.birbMode ? "\n\nWelcome back to 2012" : ""}`);
+			const message = makeElement("birb-message-content");
-		})
+			message.appendChild(document.createTextNode(`Your ${birdBirb().toLowerCase()} shall now be referred to as "${birdBirb()}"`));
+			if (userSettings.birbMode) {
+				message.appendChild(document.createElement("br"));
+				message.appendChild(document.createElement("br"));
+				message.appendChild(document.createTextNode("Welcome back to 2012"));
+			}
+			insertModal(`${birdBirb()} Mode`, message);
+		}),
+		new Separator(),
+		new MenuItem("__VERSION__", () => { alert("Thank you for using Pocket Bird! You are on version: __VERSION__") }, false),
 	];
 
 	const styleElement = document.createElement("style");
@@ -251,43 +266,18 @@ Promise.all([
 	let petStack = [];
 	let currentSpecies = DEFAULT_BIRD;
 	let unlockedSpecies = [DEFAULT_BIRD];
-	let visible = true;
+	// let visible = true;
 	let lastPetTimestamp = 0;
 	/** @type {StickyNote[]} */
 	let stickyNotes = [];
 
-	/**
+	async function load() {
-	 * @returns {boolean} Whether the script is running in a userscript extension context
+		/** @type {BirbSaveData|Object} */
-	 */
+		let saveData = await getContext().getSaveData();
-	function isUserScript() {
-		// @ts-expect-error
-		return typeof GM_getValue === "function";
-	}
-
-	function isTestEnvironment() {
-		return window.location.hostname === "127.0.0.1"
-			|| window.location.hostname === "localhost"
-			|| window.location.hostname.startsWith("192.168.");
-	}
-
-	function load() {
-		/** @type {Record<string, any>} */
-		let saveData = {};
-
-		if (isUserScript()) {
-			log("Loading save data from UserScript storage");
-			// @ts-expect-error
-			saveData = GM_getValue("birbSaveData", {}) ?? {};
-		} else if (isTestEnvironment()) {
-			log("Test environment detected, loading save data from localStorage");
-			saveData = JSON.parse(localStorage.getItem("birbSaveData") ?? "{}");
-		} else {
-			log("Not a UserScript");
-		}
 
 		debug("Loaded data: " + JSON.stringify(saveData));
 
-		if (!saveData.settings) {
+		if (!('settings' in saveData)) {
 			log("No user settings found in save data, starting fresh");
 		}
 
@@ -326,29 +316,11 @@ Promise.all([
 			}));
 		}
 
-		if (isUserScript()) {
+		getContext().putSaveData(saveData);
-			log("Saving data to UserScript storage");
-			// @ts-expect-error
-			GM_setValue("birbSaveData", saveData);
-		} else if (isTestEnvironment()) {
-			log("Test environment detected, saving data to localStorage");
-			localStorage.setItem("birbSaveData", JSON.stringify(saveData));
-		} else {
-			log("Not a UserScript");
-		}
 	}
 
 	function resetSaveData() {
-		if (isUserScript()) {
+		getContext().resetSaveData();
-			log("Resetting save data in UserScript storage");
-			// @ts-expect-error
-			GM_deleteValue("birbSaveData");
-		} else if (isTestEnvironment()) {
-			log("Test environment detected, resetting save data in localStorage");
-			localStorage.removeItem("birbSaveData");
-		} else {
-			log("Not a UserScript");
-		}
 		load();
 	}
 
@@ -368,36 +340,19 @@ Promise.all([
 	}
 
 	function init() {
+		log("Sprite sheets loaded successfully, initializing bird...");
+
 		if (window !== window.top) {
 			// Skip installation if within an iframe
 			log("In iframe, skipping Birb script initialization");
 			return;
 		}
-		log("Sprite sheets loaded successfully, initializing bird...");
 
-		// Preload font
+		load().then(onLoad);
-		const MONOCRAFT_SRC = "https://cdn.jsdelivr.net/gh/idreesinc/Monocraft@99b32ab40612ff2533a69d8f14bd8b3d9e604456/dist/Monocraft.otf";
+	}
-		const fontLink = document.createElement("link");
-		fontLink.rel = "stylesheet";
-		fontLink.href = `url(${MONOCRAFT_SRC}) format('opentype')`;
-		document.head.appendChild(fontLink);
 
-		// Add stylesheet font-face
+	function onLoad() {
-		const fontFace = `
+		styleElement.textContent = STYLESHEET;
-			@font-face {
-				font-family: 'Monocraft';
-				src: url(${MONOCRAFT_SRC}) format('opentype');
-				font-weight: normal;
-				font-style: normal;
-			}
-		`;
-		const fontStyle = document.createElement("style");
-		fontStyle.innerHTML = fontFace;
-		document.head.appendChild(fontStyle);
-
-		load();
-
-		styleElement.innerHTML = STYLESHEET;
 		document.head.appendChild(styleElement);
 
 		birb = new Birb(BIRB_CSS_SCALE, CANVAS_PIXEL_SIZE, SPRITE_SHEET, SPRITE_WIDTH, SPRITE_HEIGHT);
@@ -446,17 +401,19 @@ Promise.all([
 
 		drawStickyNotes(stickyNotes, save, deleteStickyNote);
 
-		let lastUrl = (window.location.href ?? "").split("?")[0];
+		let lastPath = getContext().getPath().split("?")[0];
 		setInterval(() => {
-			const currentUrl = (window.location.href ?? "").split("?")[0];
+			const currentPath = getContext().getPath().split("?")[0];
-			if (currentUrl !== lastUrl) {
+			if (currentPath !== lastPath) {
-				log("URL changed, updating sticky notes");
+				log("Path changed, updating sticky notes: " + currentPath);
-				lastUrl = currentUrl;
+				lastPath = currentPath;
 				drawStickyNotes(stickyNotes, save, deleteStickyNote);
 			}
 		}, URL_CHECK_INTERVAL);
 
 		setInterval(update, UPDATE_INTERVAL);
+
+		focusOnElement(true);
 	}
 
 	function update() {
@@ -464,12 +421,12 @@ Promise.all([
 
 		// Hide bird if the browser is fullscreen
 		if (document.fullscreenElement) {
-			hideBirb();
+			birb.setVisible(false);
 			// Won't be restored on fullscreen exit
 		}
 
 		if (currentState === States.IDLE && !frozen && !isMenuOpen()) {
-			if (Math.random() < HOP_CHANCE && birb.getCurrentAnimation() !== Animations.HEART) {
+			if (Date.now() - stateStart > HOP_DELAY && Math.random() < HOP_CHANCE && birb.getCurrentAnimation() !== Animations.HEART) {
 				hop();
 			} else if (Date.now() - lastActionTimestamp > AFK_TIME) {
 				// Idle for a while, do something
@@ -491,7 +448,7 @@ Promise.all([
 
 		// Double the chance of a feather if recently pet
 		const petMod = Date.now() - lastPetTimestamp < PET_BOOST_DURATION ? PET_FEATHER_BOOST : 1;
-		if (visible && Math.random() < FEATHER_CHANCE * petMod) {
+		if (birb.isVisible() && Math.random() < FEATHER_CHANCE * petMod) {
 			lastPetTimestamp = 0;
 			activateFeather();
 		}
@@ -501,7 +458,7 @@ Promise.all([
 	function draw() {
 		requestAnimationFrame(draw);
 
-		if (!birb.isVisible()) {
+		if (!birb || !birb.isVisible()) {
 			return;
 		}
 
@@ -510,12 +467,12 @@ Promise.all([
 		// Update the bird's position
 		if (currentState === States.IDLE) {
 			if (focusedElement && !isWithinHorizontalBounds()) {
-				focusOnGround();
+				flySomewhere();
 			}
 			birdY = getFocusedY();
 		} else if (currentState === States.FLYING) {
 			// Fly to target location (even if in the air)
-			if (updateParabolicPath(FLY_SPEED)) {
+			if (updateParabolicPath(FLY_SPEED, 2)) {
 				setState(States.IDLE);
 			}
 		}
@@ -524,15 +481,21 @@ Promise.all([
 		targetY = getFocusedY();
 		// Adjust startY to account for scrolling
 		startY += targetY - oldTargetY;
-		if (targetY < 0 || targetY > window.innerHeight) {
+		if (targetY < 0 || targetY > getWindowHeight()) {
-			// Fly to ground if the focused element moves out of bounds
+			// Fly to another element or the ground if the focused element moves out of bounds
-			focusOnGround();
+			flySomewhere();
 		}
 
 		if (birb.draw(SPECIES[currentSpecies])) {
 			birb.setAnimation(Animations.STILL);
 		}
 
+		// Clamp startY, birdY, targetY to a bit above the top of the window
+		const maxY = getWindowHeight() * 1.5;
+		startY = Math.min(startY, maxY);
+		birdY = Math.min(birdY, maxY);
+		targetY = Math.min(targetY, maxY);
+
 		// Update HTML element position
 		birb.setX(birdX);
 		birb.setY(birdY);
@@ -550,34 +513,37 @@ Promise.all([
 	 * Create a window element with header and content
 	 * @param {string} id
 	 * @param {string} title
-	 * @param {string} contentHtml
+	 * @param {HTMLElement} contentElement
 	 * @param {() => void} [onClose]
 	 * @returns {HTMLElement}
 	 */
-	function createWindow(id, title, contentHtml, onClose) {
+	function createWindow(id, title, contentElement, onClose) {
 		const window = makeElement("birb-window", undefined, id);
-		window.innerHTML = `
+
-			<div class="birb-window-header">
+		const header = makeElement("birb-window-header");
-				<div class="birb-window-title">${title}</div>
+		const titleElement = makeElement("birb-window-title");
-				<div class="birb-window-close">x</div>
+		titleElement.textContent = title;
-			</div>
+		const closeButton = makeElement("birb-window-close");
-			<div class="birb-window-content">
+		closeButton.textContent = "x";
-				${contentHtml}
+
-			</div>
+		header.appendChild(titleElement);
-		`;
+		header.appendChild(closeButton);
+
+		const contentWrapper = makeElement("birb-window-content");
+		contentWrapper.appendChild(contentElement);
+
+		window.appendChild(header);
+		window.appendChild(contentWrapper);
 
 		document.body.appendChild(window);
-		makeDraggable(window.querySelector(".birb-window-header"));
+		makeDraggable(header);
 
-		const closeButton = window.querySelector(".birb-window-close");
+		makeClosable(() => {
-		if (closeButton) {
+			if (onClose) {
-			makeClosable(() => {
+				onClose();
-				if (onClose) {
+			}
-					onClose();
+			window.remove();
-				}
+		}, closeButton);
-				window.remove();
-			}, closeButton);
-		}
 
 		return window;
 	}
@@ -637,7 +603,13 @@ Promise.all([
 	function unlockBird(birdType) {
 		if (!unlockedSpecies.includes(birdType)) {
 			unlockedSpecies.push(birdType);
-			insertModal("New Bird Unlocked!", `You've found a <b>${SPECIES[birdType].name}</b> feather! Use the Field Guide to switch your bird's species.`);
+			const message = makeElement("birb-message-content");
+			message.appendChild(document.createTextNode("You've found a "));
+			const bold = document.createElement("b");
+			bold.textContent = SPECIES[birdType].name;
+			message.appendChild(bold);
+			message.appendChild(document.createTextNode(" feather! Use the Field Guide to switch your bird's species."));
+			insertModal("New Bird Unlocked!", message);
 		}
 		save();
 	}
@@ -648,8 +620,8 @@ Promise.all([
 			return;
 		}
 		const y = parseInt(feather.style.top || "0") + FEATHER_FALL_SPEED;
-		feather.style.top = `${Math.min(y, window.innerHeight - feather.offsetHeight)}px`;
+		feather.style.top = `${Math.min(y, getWindowHeight() - feather.offsetHeight)}px`;
-		if (y < window.innerHeight - feather.offsetHeight) {
+		if (y < getWindowHeight() - feather.offsetHeight) {
 			feather.style.left = `${Math.sin(3.14 * 2 * (ticks / 120)) * 25}px`;
 		}
 	}
@@ -659,23 +631,19 @@ Promise.all([
 	 */
 	function centerElement(element) {
 		element.style.left = `${window.innerWidth / 2 - element.offsetWidth / 2}px`;
-		element.style.top = `${window.innerHeight / 2 - element.offsetHeight / 2}px`;
+		element.style.top = `${getWindowHeight() / 2 - element.offsetHeight / 2}px`;
 	}
 
 	/**
 	 * @param {string} title
-	 * @param {string} message
+	 * @param {HTMLElement} content
 	 */
-	function insertModal(title, message) {
+	function insertModal(title, content) {
 		if (document.querySelector("#" + FIELD_GUIDE_ID)) {
 			return;
 		}
 
-		const modal = createWindow("birb-modal", title, `
+		const modal = createWindow("birb-modal", title, content);
-			<div class="birb-message-content">
-				${message}
-			</div>
-		`);
 
 		modal.style.width = "270px";
 		centerElement(modal);
@@ -695,7 +663,7 @@ Promise.all([
 			// Right side
 			x -= (menu.offsetWidth + offset) * UI_CSS_SCALE;
 		}
-		if (y > window.innerHeight / 2) {
+		if (y > getWindowHeight() / 2) {
 			// Top side
 			y -= (menu.offsetHeight + offset + 10) * UI_CSS_SCALE;
 		} else {
@@ -710,44 +678,40 @@ Promise.all([
 		if (document.querySelector("#" + FIELD_GUIDE_ID)) {
 			return;
 		}
-		let html = `
-			<div class="birb-window-header">
-				<div class="birb-window-title">Field Guide</div>
-				<div class="birb-window-close">x</div>
-			</div>
-			<div class="birb-window-content">
-				<div class="birb-grid-content"></div>
-				<div class="birb-field-guide-description"></div>
-			</div>`
-		const fieldGuide = makeElement("birb-window", undefined, FIELD_GUIDE_ID);
-		fieldGuide.innerHTML = html;
-		document.body.appendChild(fieldGuide);
-		makeDraggable(fieldGuide.querySelector(".birb-window-header"));
 
-		const closeButton = fieldGuide.querySelector(".birb-window-close");
+		const contentContainer = document.createElement("div");
-		if (closeButton) {
+		const content = makeElement("birb-grid-content");
-			makeClosable(() => {
+		const description = makeElement("birb-field-guide-description");
-				fieldGuide.remove();
+		contentContainer.appendChild(content);
-			}, closeButton);
+		contentContainer.appendChild(description);
-		}
 
-		const content = fieldGuide.querySelector(".birb-grid-content");
+		const fieldGuide = createWindow(
-		if (!content) {
+			FIELD_GUIDE_ID,
-			return;
+			"Field Guide",
-		}
+			contentContainer
-		content.innerHTML = "";
+		);
 
 		const generateDescription = (/** @type {string} */ speciesId) => {
 			const type = SPECIES[speciesId];
 			const unlocked = unlockedSpecies.includes(speciesId);
-			return "<b>" + type.name + "</b><div style='height: 0.3em'></div>" + (!unlocked ? "Not yet unlocked" : type.description);
+
+			const boldName = document.createElement("b");
+			boldName.textContent = type.name;
+
+			const spacer = document.createElement("div");
+			spacer.style.height = "0.3em";
+
+			const descText = document.createTextNode(!unlocked ? "Not yet unlocked" : type.description);
+
+			const fragment = document.createDocumentFragment();
+			fragment.appendChild(boldName);
+			fragment.appendChild(spacer);
+			fragment.appendChild(descText);
+
+			return fragment;
 		};
 
-		const description = fieldGuide.querySelector(".birb-field-guide-description");
+		description.appendChild(generateDescription(currentSpecies));
-		if (!description) {
-			return;
-		}
-		description.innerHTML = generateDescription(currentSpecies);
 		for (const [id, type] of Object.entries(SPECIES)) {
 			const unlocked = unlockedSpecies.includes(id);
 			const speciesElement = makeElement("birb-grid-item");
@@ -776,11 +740,12 @@ Promise.all([
 				speciesElement.classList.add("birb-grid-item-locked");
 			}
 			speciesElement.addEventListener("mouseover", () => {
-				log("mouseover");
+				description.textContent = "";
-				description.innerHTML = generateDescription(id);
+				description.appendChild(generateDescription(id));
 			});
 			speciesElement.addEventListener("mouseout", () => {
-				description.innerHTML = generateDescription(currentSpecies);
+				description.textContent = "";
+				description.appendChild(generateDescription(currentSpecies));
 			});
 		}
 		centerElement(fieldGuide);
@@ -799,7 +764,7 @@ Promise.all([
 	function switchSpecies(type) {
 		currentSpecies = type;
 		// Update CSS variable --birb-highlight to be wing color
-		document.documentElement.style.setProperty("--birb-highlight", SPECIES[type].colors[SPRITE.THEME_HIGHLIGHT]);
+		document.documentElement.style.setProperty("--birb-highlight", SPECIES[type].colors[Sprite.THEME_HIGHLIGHT]);
 		save();
 	}
 
@@ -814,7 +779,7 @@ Promise.all([
 		const dy = targetY - startY;
 		const distance = Math.sqrt(dx * dx + dy * dy);
 		const time = Date.now() - stateStart;
-		if (distance > Math.max(window.innerWidth, window.innerHeight) / 2) {
+		if (distance > Math.max(window.innerWidth, getWindowHeight()) / 2) {
 			speed *= 1.3;
 		}
 		const amount = Math.min(1, time / (distance / speed));
@@ -840,60 +805,114 @@ Promise.all([
 	}
 
 	function getFocusedY() {
-		return getFullWindowHeight() - focusedBounds.top;
+		return getWindowHeight() - focusedBounds.top;
 	}
 
 	/**
-	 * @returns The render-safe height of the inner browser window
+	 * Fly to either an element or the ground
 	 */
-	function getSafeWindowHeight() {
+	function flySomewhere() {
-		// Necessary because iOS 26 Safari is terrible and won't render
+		// On mobile, always prefer to focus on an element
-		// fixed elements behind the address bar
+		// If not mobile, 50% chance to focus on ground
-		return window.innerHeight;
+		// if ((!isMobile() && coinFlip()) || !focusOnElement()) {
-	}
+		// 	focusOnGround();
-
+		// }
-	/**
+		if (!focusOnElement()) {
-	 * @returns The true height of the inner browser window
+			focusOnGround();
-	 */
+		}
-	function getFullWindowHeight() {
-		return document.documentElement.clientHeight;
 	}
 
 	function focusOnGround() {
 		focusedElement = null;
-		focusedBounds = { left: 0, right: window.innerWidth, top: getSafeWindowHeight() };
+		updateFocusedElementBounds();
 		flyTo(Math.random() * window.innerWidth, 0);
 	}
 
-	function focusOnElement() {
+	/**
+	 * Focus on an element within the viewport
+	 * @param {boolean} [teleport] Whether to teleport to the element instead of flying
+	 * @returns Whether an element to focus on was found
+	 */
+	function focusOnElement(teleport = false) {
 		if (frozen) {
-			return;
+			return false;
 		}
-		const elements = document.querySelectorAll("img, video");
+		const MIN_FOCUS_ELEMENT_TOP = getContext().getFocusElementTopMargin();
+		const elements = document.querySelectorAll(getContext().getFocusableElements().join(", "));
 		const inWindow = Array.from(elements).filter((img) => {
 			const rect = img.getBoundingClientRect();
-			return rect.left >= 0 && rect.top >= MIN_FOCUS_ELEMENT_TOP && rect.right <= window.innerWidth && rect.top <= window.innerHeight;
+			return rect.left >= 0 && rect.top >= MIN_FOCUS_ELEMENT_TOP && rect.right <= window.innerWidth && rect.top <= getWindowHeight();
+		});
+		const visible = Array.from(inWindow).filter((img) => {
+			const style = window.getComputedStyle(img);
+			if (style.display === "none" || style.visibility === "hidden" || (style.opacity && parseFloat(style.opacity) < 0.25)) {
+				return false;
+			}
+			return true;
 		});
 		/** @type {HTMLElement[]} */
 		// @ts-expect-error
-		const largeElements = Array.from(inWindow).filter((img) => img instanceof HTMLElement && img !== focusedElement && img.offsetWidth >= MIN_FOCUS_ELEMENT_WIDTH);
+		const largeElements = Array.from(visible).filter((img) => img instanceof HTMLElement && img !== focusedElement && img.offsetWidth >= MIN_FOCUS_ELEMENT_WIDTH);
-		if (largeElements.length === 0) {
+		// Ensure the bird doesn't land on fixed or sticky elements
-			return;
+		const fixedAllowed = getContext() instanceof ObsidianContext;
+		const nonFixedElements = largeElements.filter((el) => {
+			if (fixedAllowed) {
+				return true;
+			}
+			const style = window.getComputedStyle(el);
+			return style.position !== "fixed" && style.position !== "sticky";
+		});
+		if (nonFixedElements.length === 0) {
+			return false;
 		}
-		const randomElement = largeElements[Math.floor(Math.random() * largeElements.length)];
+		const randomElement = nonFixedElements[Math.floor(Math.random() * nonFixedElements.length)];
 		focusedElement = randomElement;
 		log("Focusing on element: ", focusedElement);
 		updateFocusedElementBounds();
-		flyTo(getFocusedElementRandomX(), getFocusedY());
+		if (teleport) {
+			teleportTo(getFocusedElementRandomX(), getFocusedY());
+		} else {
+			flyTo(getFocusedElementRandomX(), getFocusedY());
+		}
+		return randomElement !== null;
+	}
+
+	/**
+	 * @param {number} x
+	 * @param {number} y
+	 */
+	function teleportTo(x, y) {
+		birdX = x;
+		birdY = y;
+		setState(States.IDLE);
 	}
 
 	function updateFocusedElementBounds() {
 		if (focusedElement === null) {
 			// Update ground location to bottom of window
-			focusedBounds = { left: 0, right: window.innerWidth, top: getFullWindowHeight() };
+			focusedBounds = { left: 0, right: window.innerWidth, top: getWindowHeight() };
 			return;
 		}
-		const { left, right, top } = focusedElement.getBoundingClientRect();
+		let { left, right, top } = focusedElement.getBoundingClientRect();
+		if (focusedElement.classList.contains("birb-sticky-note")) {
+			top -= 4.5 * UI_CSS_SCALE;
+			if (focusedBounds.left !== left) {
+				// Sticky note has moved
+				const oldWidth = focusedBounds.right - focusedBounds.left;
+				const newWidth = right - left;
+				if (oldWidth === newWidth) {
+					// Move bird along with note
+					if (currentState === States.IDLE) {
+						birdX += left - focusedBounds.left;
+					} else if (currentState === States.HOP) {
+						startX += left - focusedBounds.left;
+						startY += top - focusedBounds.top;
+						targetX += left - focusedBounds.left;
+						targetY += top - focusedBounds.top;
+					}
+				}
+			}
+		}
 		focusedBounds = { left, right, top };
 	}
 
@@ -924,11 +943,6 @@ Promise.all([
 		}
 	}
 
-	function hideBirb() {
-		birb.setVisible(false);
-		visible = false;
-	}
-
 	/**
 	 * @param {number} x
 	 * @param {number} y
@@ -960,21 +974,11 @@ Promise.all([
 			birb.setAnimation(Animations.BOB);
 		}
 		birb.setAbsolutePositioned(isAbsolute());
-		setY(birdY);
+		birb.setY(birdY);
 	}
 
-	/**
+	function coinFlip() {
-	 * @param {number} x
+		return Math.random() < 0.5;
-	 */
-	function setX(x) {
-		birb.setX(x);
-	}
-
-	/**
-	 * @param {number} y
-	 */
-	function setY(y) {
-		birb.setY(y);
 	}
 
 	// Helper functions