Using Deno for front-end programming, incl. unit-testing
Using Jest, userscripts with no legacy tools
Tampermonkey allows running userscripts in browsers. Extensively used in some places it seems.
Run Deno on ARMv8
A great example of a complete process from push-to-git to deploy-in-production-via-canary: https://youtu.be/XNXJtxkUKeY I highly recommend Viktor’s YouTube channel if you want to see what exists in the DevOps space: he plays with all available tools a bit and thus can compare them well and (relatively) objectively.