(This is the equivalent of #6404, except for the desktop app rather than the TUI. Thanks a lot for resolving that one so quickly!)

AFAICS, there is nothing in any of README.md, CONTRIBUTING.md, packages/desktop/README.md, https://opencode.ai/docs#install etc. explaining how to run the OpenCode Desktop from source.

Fixing this is important if you want more people to help test (and even develop against) the latest development branches.