BTHLABS-66: Prepping for public release: Take two

services/extension/README.md

@@ -1,3 +1,36 @@
 # HotPocket by BTHLabs
 
 This repository contains the _HotPocket Extension_ project.
+
+## Development environment setup
+
+### Requirements
+
+* macOS (18 or newer) or modern Linux (including WSL2).
+* nodejs v22.14 or later.
+* yarnpkg v1.22.22 or newer.
+
+### Setup
+
+1. `yarn install`
+
+## Building browser-specific extensions
+
+To build a browser-specific extension, use the following command:
+
+```
+$ yarn build:<target>
+```
+
+Where `<target>` is the name of the browser. The currently supported targets
+are: `safari`, `firefox`, `chrome`. The build result will be placed in
+`dist/<target>-production` for Firefox and Chrome extensions. Safari
+extension will be built in the `apple` service tree.
+
+## Author
+
+_HotPocket_ is developed by [BTHLabs](https://www.bthlabs.pl/).
+
+## License
+
+_HotPocket_ is licensed under the Apache 2.0 License.