Running Durable Workflows in Postgres Using DBOS (supabase.com)
Michael Stonebraker is the inventor of Postgres and a Turing Award winner. His latest venture is DBOS, a three-year joint research project between Stanford and MIT. The DBOS team have built a Durable Workflow engine using Postgres. It's one of the of the more elegant designs I've seen, leveraging the features of Postgres to keep it lightweight and fast.