How to add indent style for non-supported language

[Landflier]

I want to configure helix to have a specific indent style for .tcl and .tk files. Currently, each time I open a .tcl file, I have to manually set this up using :indent-style 3. Since tcl and tk are not supported in the official languages listed in helix --health, I tried to add them in the languages.toml, but got some errors, like no roots found etc.

[the-mikedavis]

Creating an entry in ~/.config/helix/languages.toml or .helix/languages.toml is the proper way to do this, you'll just need to fill in the required keys:

[[language]]
name = "tcl"
scope = "source.tcl"
file-types = ["tcl"]
roots = []
indent = { unit = "   ", tab-width = 3 }

[Landflier]

Great, thank! I was only missing the roots = [] ;)