local null_ls = require("null-ls") null_ls.setup({ sources = { null_ls.builtins.formatting.rustfmt, null_ls.builtins.formatting.stylish_haskell, null_ls.builtins.formatting.fourmolu, null_ls.builtins.formatting.blue, null_ls.builtins.formatting.prettierd.with({ filetypes = { "html", "json", "yaml", "markdown" }, }), } })