[0xQSL]

It would be interesting to add cake sqm as that is the only reason i'd currently prefer openwrt/lede over this. Cake should be in mainline linux soon. (https://www.phoronix.com/scan.php?page=news_item&px=CAKE-Qdi...)

How would one go about implementing this? Call the tc binary or reimplement tc in go?

[secure]

You can prototype/test the feature by calling tc (interactively via https://github.com/gokrazy/breakglass). Then, a good long-term solution is to reimplement what tc is doing in Go.