Install and update

$ curl -fsSL https://raw.githubusercontent.com/mayberuk/lets/main/install.sh | sh

install.sh detects an existing lets, updates it in place if it’s this project’s build, and offers to wire up agent hooks. It refuses, naming the one it found, if a different lets is already first on PATH. Its own flags:

Usage: install.sh [--version vX.Y.Z] [--hooks=claude-code,codex | --no-hooks] [--check] [--uninstall] [--yes]
Installs into $LETS_BIN_DIR, default ~/.local/bin.

--version vX.Y.Z installs a specific release instead of the latest.
--hooks=claude-code,codex installs the named agent hooks non-interactively; --no-hooks skips hook setup entirely. With neither given, the script asks interactively (see the hooks reference for what each hook does).
--check reports whether a newer release exists (via lets update --check) without installing anything.
--uninstall removes any agent hooks this script installed, then deletes the binary.
--yes assumes yes to every interactive prompt, for non-interactive installs.

Linux and macOS.

Or fetch a release binary directly, the dist-generated one-liner used by install.sh itself under the hood:

$ curl --proto '=https' --tlsv1.2 -LsSf https://github.com/mayberuk/lets/releases/latest/download/lets-installer.sh | sh

`lets update`

lets update [OPTIONS]

Flag	Meaning	Default
`--check`	report whether a newer release exists, without installing it	off
`--force`	reinstall the latest release even when this one is already it	off

update refuses, naming the one it found, when a different lets comes first on PATH. update --check only compares versions against the latest release and never touches PATH, so it does not refuse this way.

Exit	Slug	Means
0	—	up to date, or updated
1	`update_available`	`--check` found a newer release; nothing was installed
1	`path_conflict`	a different `lets` comes first on `PATH`; named in the message
1	`no_repository`	this build names no release repository
7	`update_failed`	no release for this platform, the download failed, or the installer exited non-zero

$ lets update --check
lets 0.0.1 is the latest release

$ lets update --check
? 1
lets 0.0.1 · latest 999.0.0
lets 0.0.1 · latest 999.0.0 · run `lets update`
ERROR_CODE=update_available

$ lets update
replaced with the latest release

`lets version`

$ lets version
lets 0.0.1

$ lets version --json
{"version":"0.0.1"}

--json/--jsonl carry the version string alone, with no omitted/stats — see –json and –jsonl.

Agent hooks

install.sh can wire up an agent’s own settings during install (--hooks=/--no-hooks/--yes above), or it can be done separately at any time with lets hooks install claude-code or lets hooks install codex. See the hooks reference for what each hook does and how to uninstall it.

Uninstall

$ curl -fsSL https://raw.githubusercontent.com/mayberuk/lets/main/install.sh | sh -s -- --uninstall

Removes any agent hooks install.sh added, then deletes the binary from $LETS_BIN_DIR.

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