Aphex is a fully open source CMS built on SvelteKit. One codebase, one deploy, with content stored in your own database. Developers get schema-as-code and typed APIs. Editors get a polished Studio.
I was an avid Sanity + Svelte user - thought it would be fun to create a Sanity-like thing that was built within a SvelteKit app.. roughly a year later, I believe it's ready for proper web use!! Obviously, it's still not perfect. There are probably bugs here and there that I've missed, and tons of features that are missing BUT.. it's good enough for my use case and just thought I'd share it here now with y'all in case anyone is interested!