TrapOS

A small in-game operating system for ComputerCraft / CC:Tweaked, built around a single-threaded event loop and a routed networking layer.

Installation

Install ccpm first. This is the only step that needs wget with a URL:

wget run https://raw.githubusercontent.com/guillaumearm/cc-libs/master/install-ccpm.lua

Then sync the default registry (guillaumearm/cc-libs) and install TrapOS:

ccpm update
ccpm install trapos

Install individual packages instead if you want to cherry-pick:

> ccpm install trapos-net
> ccpm install trapos-ui

Install ccpm from the beta branch (one-time opt-in, asks for confirmation):

wget run https://raw.githubusercontent.com/guillaumearm/cc-libs/next/install-ccpm.lua --beta

Once ccpm is installed from beta, the default registry tracks next; ccpm update and ccpm upgrade keep using that branch.

After install, every boot shows a colored MOTD with the installed version and branch (lime for stable, orange + [BETA] for beta).

Packages

TrapOS is split into packages, each described by a packages/<name>/ccpm.json:

• trapos-core: the package manager (ccpm), event loop, upgrade, events.
• trapos-test: the test framework (libtest) and suite runner (runtest).
• trapos-boot: the startup MOTD and autostart server launcher.
• trapos-net: routed modem networking (net, router, ping, ping-server).
• trapos-ui: the terminal UI toolkit (libtui, tuidemo).
• trapos-ai: the AI client for opencode serve.
• trapos: full TrapOS meta-package (trapos-boot, trapos-net, trapos-ui, trapos-test, and trapos-ai during beta).

The trapos meta-package is the user-facing full install. Package descriptors list files and autostart servers; installed state is tracked under /trapos.

ccpm

ccpm is the TrapOS package manager. install-ccpm.lua installs it by installing the required trapos-core package and configures the default registry (guillaumearm/cc-libs).

ccpm install <package>     ccpm reinstall <package>   ccpm uninstall <package>
ccpm update                ccpm upgrade
ccpm ls                    ccpm available [term]      ccpm search [term]
ccpm info <package>
ccpm registry ls           ccpm registry add <name> [--branch <b>] [--type github|http]
ccpm registry rm <name>

ccpm update fetches registry package indexes into /trapos/ccpm.cache.json. ccpm available lists cached packages and marks installed packages as up-to-date or updatable. ccpm upgrade upgrades installed packages based on that cache.

Registries default to GitHub (owner/repo); http/https base URLs are also supported. State lives in /trapos/ccpm.json (registries), /trapos/ccpm.lock.json (installed packages), and /trapos/ccpm.cache.json (available packages). See ADR-0010.

APIs

• /apis/eventloop: a simple event loop API.
• /apis/net: an API to simplify sending and receiving routed messages, based on the eventloop library.

Servers

Servers listed in manifest.autostart are launched at boot by startup/servers.lua.

• /servers/ping-server: allows a machine to respond to a ping command.

Programs

• router: routes messages. You need to set up a router to use all apis/net-based programs and libraries.
• ping: pings machines using apis/net.
• events: emits and logs computer events.
• upgrade: alias for ccpm upgrade.

Development

See DEVELOPMENT.md for local development installation.