Don't conflate Nostr with OpenSats and Jack's funds. Those influence how many Nostriches find out about your project, and how many regularly use it, but nobody can stop you from building. And you can always launch finished projects off-Nostr. Some of us are broke nobodies, but we've still been building for years. Including social clients, like my https://jumble.imwald.eu/ and some of the most advanced OtherStuff clients. I know you won't read this and I don't care. Maybe someone else will.