E5-2650v2 in a Chinese mATX motherboard for me. Got the cpu years ago for like $50 as an eBay server pull. 970 Evo SSD. 24GB of mismatched DDR3. Runs all my home server junk and my dev environment (containerized with Incus). Every year I tell myself I should grab a newer Ryzen to replace it but it honestly just keeps chugging along and doesn't really slow me down.