Vanilla DOM manipulation on the front-end, template strings and a markdown renderer in Node on the back-end, flat-files for storage until I end up needing SQLit

Vanilla DOM manipulation on the front-end, template strings and a markdown renderer in Node on the back-end, flat-files for storage until I end up needing SQLite or sometimes NeDB. If something ends up being too slow I break it out and rewrite it in C and ship it as WASM. It isn't my favorite aesthetically but as much as I like the various LISPs, Rust and Haskell/Purescript I use the above nine times out of ten.