Helix Editor + Svelte + Prettier configuration

languages.toml

[[language]]
name = "svelte"
# Format when saving
auto-format = true
# Replace path to prettier-plugin-svelte if needed (this one is for those using macOS and brew)
# You do NOT need --stdin arg as suggested by some
# Then look at helix logs to make sure you have correctly configured it
formatter = { command = 'prettier', args = ["--plugin=/opt/homebrew/lib/node_modules/prettier-plugin-svelte/plugin.js", "--parser=svelte"] }

# Optional (only if you are using and configured eslint before)
# language-servers = [ "svelteserver", "eslint" ]