Editora 0.18.3. Archived, so links from that release keep working. Read the 0.18.5 page →
Install: Language Server…
install.languageServer Download and install a language server for one of the supported languages.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for Install: Language Server…, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.