a friend of mine who interned at twitter a couple years ago and now works on bazel (wow! time flies) was asking if there was any material or like talks about pants architecture, specifically subsystems. stu had a fantastic talk on the v2 engine at the dev engineering systems summit in seattle and there's a fantastic video on pex from brian wickman but i'm not familiar with others (although i guess i'm probably gonna just scroll through the pants twitter and see some)