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NixOS: custom tools fail because they cannot find imported modules #5914
Description
Description
On NixOS after configuring custom tools, for any message that I sent I only got error messages like
cannot find module '@opencode-ai/plugin' (when I tried to symlink my tools from my nixOS repo into the Opencode config repo)
and
ENOENT reading "/nix/store/somethingsomething...-opencode-.1.0.184/lib/opencode/node_modules/@opencode-ai/plugin/node_modules/zod" (when I let NixOS copy my tools from my NixOS repo into the Opencode config dir on rebuild)
After much trying around I've managed to make it work on my fork:
dev...JoshuaDietz:opencode:try-fix-nixos-plugins
But since I'm not experienced at all with NixOS packaging I honestly have no idea if this is a clean way to do it and if it's worth a PR. But I hope that it can maybe at least be a starting point for someone more competent than me 😆
OpenCode version
1.0.184
Steps to reproduce
- Install Opencode on NixOS with
opencode.url = "github:sst/opencode(in flake.nix) - Add a custom tool as described here: https://opencode.ai/docs/custom-tools
- Talk to Opencode in TUI mode. Immediately when sending a message I got one of the errors above
Screenshot and/or share link
No response
Operating System
NixOS 25.11
Terminal
Konsole
Activity
megalithic commentedon Dec 27, 2025
getting this one too
github-actions commentedon Mar 25, 2026
To stay organized issues are automatically closed after 90 days of no activity. If the issue is still relevant please open a new one.
dani0854 commentedon Apr 10, 2026
I have same problem, have to copy custom tools instead of linking them.
ElnuDev commentedon Nov 10, 2026
@rekram1-node I'm not sure if you closed this because it looks like it's a NixOS-specific issue, but it isn't. #11001 is the same problem reported on macOS. (I don't know why the post author closed that issue as completed, no solution was given.)