DIY node steps
If you have made your own node on linux, here is a simple and quick guide to switch from Bitcoin Core to Bitcoin Knots.
If you want to create from scratch a bitcoin node on alpine linux you can use this guide, but make sure to use Knots or to apply ordisrespector patch on Core.
There is also a guide for Debian/Ubuntu, which is a bit easier than alpine linux. You can find this guide here.