馃敟 Try #commonlisp 100% in the browser, using JupyterLite, a WASM-powered Jupyter:
=> https://wiki3-ai.github.io/jscl-kernel/
src: https://github.com/wiki3-ai/jscl-kernel
seen on: https://github.com/jscl-project/jscl/discussions/568
JupyterLite: https://github.com/jupyterlite/jupyterlite
JSCL is seeing a lot of activity. It has CLOS, complete FORMAT (ported from CMUCL), very decent LOOP support.