I mentioned some time ago (https://sociale.network/@oblomov/113137451504133746) the introduction of #sparklines in the in the index pages of my website. I've now refined the procedure and even wrote a small #awk script to do the thing:
https://wok.oblomov.eu/tecnologia/sparkling-wok-2/
The advantage is that this isn't tied to a specific process to get the input data, so I can use it to process any output, not just the one from git log (as I was doing earlier). I can be easily customizable, so can be probably used for other things too.