Multiple Languages

[JirR02]

Is it possible to use multiple languages as a language source?

[f3fora]

yes. Check :help spelllang.
e.g in lua you can set vim.opt.spelllang = {'en', 'it'}.

[ducks4rule]

I tried this with vim.opt.spelllang = {'en_gb', 'de'}, both are installed and it did not work. Any help on how to troubleshoot?

[prncss-xyz]

What works for me is vim.opt.spelllang = 'en_us,fr'.