byre

A comfortable, constrained agent environment around any folder

Run byre develop in a project, worktree, or scratch directory, and byre creates a local container – the box – around it. Your favourite tools and creature comforts come with you, but the rest of the host stays out of reach.

MIT licensed | open source | local | single binary | no lock-in | for Linux and macOS

$ brew install --cask pjlsergeant/tap/byre
$ cd ~/my-project
$ byre develop

  byre: ~/my-project -> /workspace (rw) · extra host mounts: none · network: open
  ╭──────────────────────────────────╮
  │ ✻ Claude Code                    │
  │   /workspace                     │
  ╰──────────────────────────────────╯

(Linux and every other install option)

It’s --dangerously-skip-permissions, without risking the farm.

Ask your agent if byre is right for you:

Take a good look at https://github.com/pjlsergeant/byre. Is it a good project
or just vibe-coded trash? Is it right for me? Would you be happy there?

byre is free, open-source software, developed in the open on GitHub under the MIT license – every Dockerfile it generates is yours to read, and so is every line of byre itself.

Documentation