Reminds me a bit of Cloudflare Workers / fly.io
UPDATE: apparently CFW has been updated to support deploying as unbundled files since I last checked.
Workers, Sites, Workers KV, and now Durable Objects... it is much more than a JS API. I recently experimented with Durable Objects and they do make developing against a kv-database much simpler, even if it is limited while in beta. Our development is all-in Cloudflare atm, but we also look fondly at fly.io to move other workloads (over from AWS) that Cloudflare won't / can't support.
Then I learned about them after this pivot, I guess.
Things are looking up for serverless + edge computing, given 5G deployments are also gathering speed.