What we need is a web deliverable (i.e. not a "web technology based" Electron desktop app) Neovim frontend. Something like a Wasm & WebGL based UI layer connected via msgpack to the editor core that's running in a sandbox on GitLab's infrastructure.
I'm truly sorry if the above drivel is either impossible or insane; as an embedded guy this is most definitely way outside my wheelhouse. I should get back to repairing my oscilloscope.