Also Hasura and PostgREST (thus by extension Supabase). I would also add that one of the entry barriers of such projects is the need to write UDF. Most develope

Also Hasura and PostgREST (thus by extension Supabase). I would also add that one of the entry barriers of such projects is the need to write UDF. Most developers are not used to write UDFs, and the languagea (plsql and likes) themselves lack the features and ease of modern languages and vary among database vendors. As mentioned by other people there have been attempts to allow writing UDF using the JVM, Javascript, Python and so on, by they never caught on (and some of them are difficult to install) and are not that portable to other database vendors, they require installing third party extensions and so on. I for one see WASM to be a good candidate for a really portable solution.