configuration file

using Nix as my configuration tool of choice, my setup (opencode.nix results in this config.json:

{
  "$schema": "https://opencode.ai/config.json",
  "autoupdate": false,
  "mcp": {
    // ...
    "github": {
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {file:/home/muni/.config/sops-nix/secrets/github_pat}"
      },
      "type": "remote",
      "url": "https://api.githubcopilot.com/mcp/"
    },
    // ...
  }
}

observed behavior

when i run opencode, i get:

Error: Config file at /home/muni/.config/opencode/config.json is not valid JSON

if i remove the headers object, opencode can start as expected again, without error.

expected behavior

i expect opencode to substitute the contents of my file into the Authorization header, as documented here: https://opencode.ai/docs/config/#files

i assume it works with remote mcp configurations too, at least 😅 https://opencode.ai/docs/mcp-servers/#remote

opencode version

i just upgraded to opencode 0.3.85, but this issue has been present since 0.3.80 as well.

other notes

the github_pat file has a permissions mode of 400. it is not a symlink.