Why would you not ask opencode to fix the issue for you instead of asking opencode folks to ask their opencode to fix it for you? Surely Maintaining your own fork is just one markdown file and one corn task away.

OpenCode builds a lot of stuff into the agent core; I'd need to fork OpenCode. But let's say it was fixable in an extension. I'd need to maintain that fork/extension forever, re-fixing the bug and patchset for every upgraded version, re-patching the software every week. Everyone would have to do this, not just me. This is why "just fork it" is never a practical solution.