I just finished up my Home Lab series where I buy some random old rack gear, set everything up and end at a full Kubernetes-driven GitOps CICD setup at home!
https://salmonsec.com/blogs/home_lab_0
https://salmonsec.com/blogs/home_lab_1
https://salmonsec.com/blogs/home_lab_2
https://salmonsec.com/blogs/home_lab_3