pkgx Backend <Badge type="warning" text="experimental" />

The pkgx backend installs packages from the pkgx pantry without shelling out to the pkgx CLI. mise resolves pantry metadata, downloads pkgx bottles from dist.pkgx.dev, verifies bottle checksums when available, and writes wrapper scripts that set the package runtime environment.

This backend is experimental. Enable it for the project in mise.toml:

[settings]
experimental = true

Or prefix an individual command with MISE_EXPERIMENTAL=1.

Usage

Install a pkgx package by its pantry project name. This is often a domain and path rather than the executable name:

mise use pkgx:stedolan.github.io/[email protected]
mise exec -- jq --version

The version will be set in mise.toml with the following format:

[tools]
"pkgx:stedolan.github.io/jq" = "1.7.1"

Lockfiles

The pkgx backend supports mise.lock. Locking records the main bottle URL and checksum on the tool entry, and records transitive pkgx dependencies in the shared [pkgx-packages] lockfile section.

mise lock
mise install --locked

With --locked, mise requires a lockfile URL for the current platform and fails instead of performing a live pantry resolution if the lockfile is missing or incomplete.

Notes

• This backend currently supports platforms that pkgx publishes bottles for.
• Version requirements are resolved from pkgx pantry metadata using npm-style semver ranges.
• The runtime environment from pantry manifests is applied through generated wrappers.

Troubleshooting

Use mise ls-remote pkgx:stedolan.github.io/jq to check the package identifier and available versions. A version still needs bottles for your platform and its transitive dependencies. Use mise exec -- jq --version to verify the generated launcher and runtime environment.

Do not bypass the launcher by copying its underlying binary elsewhere: the wrapper supplies the pantry-defined library paths and environment. For locked installs, keep the shared pkgx-packages entries as well as the top-level tool entry.