The built-in bundles are a good default but probably not yours. Pass any TOML file as --config to swap in your own:

lfg --config ./my-preset.toml
lfg --config https://example.com/preset.toml   # http(s) supported

Minimal example

[[bundles]]
id = "minimal"
name = "minimal"
default = true

  [[bundles.tools]]
  name = "git"
  source = "brew"
  homepage = "https://git-scm.com"
  install_mac = "brew install git"
  install_linux = "sudo apt-get install -y git"

default = true pre-selects the bundle in the picker. Mark a tool mandatory = true to make it always-on (rendered with [●], can't be unchecked).

Round-trip your current setup

lfg export                   # save → ~/lfg-preset-YYYY-MM-DD.toml
lfg export -o ./preset.toml  # explicit path
lfg --config ./preset.toml   # load it (bundles, mandatories, install commands all preserved)

Field reference

See Preset TOML schema for the full field-by-field reference (post-install hooks, skills URLs, source backends, etc).

Validation

lfg --config parses the file before launching the TUI. Common errors:

• unknown source — must be one of brew, apt, mise, npm, curl, skills, custom.
• missing install command — at least one of install_mac / install_linux is required.
• skills without skill_url — source = "skills" needs skill_url = "https://..." so npx skills add knows what to fetch.

lfg doctor (without --config) prints validation hints for the default preset.