Sequin is a tool for capturing changes and streaming data out of your Postgres database, guaranteeing exactly once processing. What does that mean? https://www.i-programmer.info/news/84-database/17589-sequin-open-source-message-stream-built-on-postgres.html#google_vignette
Inject middleware functionality into NGINX with the expressive power of Javascript. NGINX JavaScript or NJS for short is a dynamic module under which you can use scripting for hooking into the NGINX execution model. https://www.i-programmer.info/news/87-web-development/17580-extend-nginx-with-the-new-javascript-module.html#google_vignette