Open UPM compatibility

Compare the upm-2 branch with master and the 2.0.4 release tag, starting with package.json, colyseus.nativewebsocket.asmdef, WebSocket.jslib, WebSocket.jspre, and the WebGL C# files. Done means the released package layout includes the Unity assets and assembly definition needed for OpenUPM, with the shared sources and required .meta files present.

Hi!
As of right now, the changes necessary for using this package through the unity package manager (UPM) are on a special branch. https://github.com/endel/NativeWebSocket.git#upm-2
This is not the same as the release tags https://github.com/endel/NativeWebSocket/compare/2.0.4...upm-2
There is some assembly missing on master (and on the release tags).
In my project, we're using OpenUMP and that seems to rely on the release tags. But since the tag doesn't have the assembly definition, the version at OpenUPM isn't really working.
Would it be possible to maybe have special release tags for OpenUPM or actually merge the changes necessary for UPM onto master?
Not sure how the release process works right now but it would be very cool if we could use this package through OpenUPM =)

Here's a claude analysis comparing the upm-2 branch and master to showcase the file differences.

Both branches point at the same logical version (2.0.4, synced 2026-03-23), but they are orphan branches with no shared git history — GitHub's compare endpoint refuses them with "No common ancestor."

master — development repo layout

• Tip: cbbf04d "bump patch version to 2.0.4" (2026-03-23)
• Top level: .editorconfig, .github/, Directory.Build.props, NativeWebSocket.sln, README.md, Media/, benchmarks/, examples/, integrations/, node-websocket-server/, src/
• Sources live under src/NativeWebSocket/: IWebSocket.cs, WebSocket.cs, WebSocketTypes.cs, NativeWebSocket.csproj (no .meta files, no asmdef, no WebGL .jslib/.jspre)

upm-2 — Unity Package Manager layout (auto-generated)

• Tip: 522f0c3 "Update upm-2 to output generated at cbbf04d" (2026-03-23)
• Top level: package.json (com.endel.nativewebsocket 2.0.4, Unity ≥ 2019.1, no dependencies), WebSocket/, Samples~/WebSocketExample/
• WebSocket/ adds the Unity-only bits missing from master:
  • colyseus.nativewebsocket.asmdef — assembly definition
  • WebSocket.jslib + WebSocket.jspre — WebGL plugin code
  • WebSocketFactoryWebGL.cs, WebSocketWebGL.cs — WebGL C# implementation
  • *.meta files for every asset
  • The shared sources from master (IWebSocket.cs, WebSocket.cs, WebSocketTypes.cs)