Enable manual tab completion through LSPs

dot-config/vim/init.vim

@@ -149,6 +149,12 @@ augroup lexical
 	autocmd FileType tex lexical#init()
 augroup END
 
+g:mucomplete#can_complete = {
+	default: {
+		omni: (t) => strlen(&l:omnifunc) > 0 && (t =~# '\m\k\k$' || (g:mucomplete_with_key && t =~# '\m\S$'))
+	}
+}
+
 # Configure a statusline and tabline using vim-crystalline. I tried a bunch of
 # different statusline plugins and this one, which is basically just a utility
 # library for writing your *own* statusline functions, worked the best for my

dot-config/vim/lsp.vim

@@ -35,6 +35,6 @@ export def Configure(): void
 		augroup END
 	endif
 
-	g:lsp#lsp#AddServer(installedServers)
 	g:lsp#options#OptionsSet(options.lspOptions)
+	g:lsp#lsp#AddServer(installedServers)
 enddef

dot-config/vim/lsp/options.vim

@@ -2,6 +2,7 @@ vim9script
 
 export const lspOptions = {
 	aleSupport: true,
+	autoComplete: false, # I prefer manual tab completion using MUcomplete
 	ignoreMissingServer: true,
 }