PGLite is a WASM build of a PostgreSQL database. Unlike previous attempts that required a Linux virtual machine, PGLite directly builds PostgreSQL to WASM, allowing you to run it entirely in the web browser. You can either create an ephemeral database in memory or persist it to disk via indexedDB. Since we last mentioned local-first applications in the Radar, the tooling has evolved considerably. With Electric and PGlite, you can now build reactive local-first applications on PostgreSQL.