Thanks all. Bubble seems like it could do almost anything, but would take quite some effort to build, not far from just doing it in code.
For other people's reference: some of the no-code / low-code apps I've looked at;
Bubble - no code webapp
Wappler - low code web & app
WebFlow - web apps
--> can be combined with Memberstack for user mngmnt
bondlayer.com - multilingual no code mob + web app
draftbit - no code mob + web app
appgyver - no code mob + web app
Remake - low-code web app (by WIP member - plain HTML -> web app)
retool.com - “internal business apps”
budibase - “internal business apps”
unstack.com - no code web content bizz, A/B, marketing (CMS...)
BravoStudio - mobile apps
candu.ai - no code ... something
yourvone.com - no code mobile app, looks shakey
pory - make simple site from airtable
Carrd - one-page web apps
Working together with the right person solves most of the problems you have while making something alone.
Getting external money to join in is cheap. Your weapons here are thoughtfulness of your vision (knowledge of the problem/audience) and clarity in communication. Your obstacles are your own pride and hope.