Before writing config.toml (Codex) or opencode.json (OpenCode), the CLI
attempts to create a timestamped backup of any existing config file.
This prevents accidental data loss when users have customized configs.
Backup is best-effort - if it fails (e.g., unusual permissions), the
install continues without blocking.
Backup files are named: config.toml.bak.2026-01-23T21-16-40-065Z
The OpenCode installer was writing to ~/.opencode but OpenCode expects
global configuration at ~/.config/opencode per XDG Base Directory spec.
Fixes:
- src/commands/install.ts: Change default output from ~/.opencode to
~/.config/opencode
- src/targets/opencode.ts: Recognize "opencode" basename (not just
".opencode") for direct writes without nesting
Closes#114🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude <noreply@anthropic.com>
