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ADR 0031: The project is renamed nodwyn

  • Status: accepted
  • Date: 2026-09-30

Context

Reaching a computer from a phone without a tailnet needs a public service, and a public service needs a name that can be registered and defended. On 2026-09-30 nibb.com was parked, nibb.io served a newly launched "Nibb" AI calorie tracker offering MCP, nibb.app had been registered in August, and an AI nutrition app had filed "NIBBY" with the USPTO. The name was fine for a private tool and poor for a public one.

nodwyn (nod, the approval given before anything acts, with the Welsh -wyn ending) had a free .com, .app and .dev, no USPTO record under that name or a similar one, and was free on npm, PyPI, Homebrew, crates.io and GitHub. This was a screening, not a legal clearance.

Decision

Everything is renamed: the Go module (github.com/fclaude/nodwyn), the command (nodwyn, nodwyn-stable, nodwyn-schema), Nodwyn.app (bundle identifier com.nodwyn.app), the config and data directories (~/.config/nodwyn, ~/.local/share/nodwyn), the directory kept in each folder (.nodwyn/), environment variables (NODWYN_*), cookies, the console's names, the Scheme turn procedure (nodwyn-turn) and the docs.

What exists on disk moves once, never over something that exists:

  • On startup, ~/.config/nibb and ~/.local/share/nibb are renamed to the new directories when those do not exist yet (default layout only), and nodwyn says so on stderr.
  • Opening a session in a folder, or saving or listing it as a workspace, renames its .nibb/ to .nodwyn/ when only the former exists.

Kept under the old name, on purpose:

  • The keychain's file-format marker NIBBKC01: it is part of the header layout, and changing it would make every existing keychain unreadable.
  • The recorded sessions in test/sessions: they are replayed byte for byte.
  • ADR history keeps its decisions; its text now says nodwyn.

Consequences

  • The guard keeps denying ~/.config/nibb and ~/.local/share/nibb, and keeps .nibb/ protected, so a folder or directory that has not moved yet is guarded as before.
  • A project's .nibb/init.scm that redefined nibb-turn must rename it to nodwyn-turn; otherwise the default turn runs.
  • Browsers paired before the rename pair again (cookie names changed); a saved light/dark choice in the console resets once.
  • nibb-stable in ~/.local/bin is not touched; the next make promote installs nodwyn-stable.