I’m hacking on a tiny open-source/self hostable “prompt vault” so you can stash prompts and personas once and use them with whatever AI model you’re playing with today (or tomorrow). Right now it’s just a single-binary server with a SQLite file next to it—add / edit / tag in a simple UI, then copy or share. Next on the list: a lightweight browser extension that pops your saved snippets anywhere there’s a text box. Maybe it could grow to a more serious prompt testing/comparison pipeline, prompt templating etc