I've made very simple Alaskan mill kinda chainsaw guide. Was basically free to make and is surprisingly good at cutting slabs from at least softwoods. : r/Tools
Building A Chainsaw Mill To Make Planks | Hackaday
Home Made Alaskan Chainsaw Mill | Chainsaw mill plans, Chainsaw mill, Chainsaw
Timber Framing Tools: Learn to Use a Chainsaw Mill (Video) – Mother Earth News