It's amazing to see that there's still a sizeable scene devoted to this humble little box, and there's new hardware and impressive hacks being built to this day. In the words of one of the messages from a user of my site: "It’s mad being online with a 40yr old computer designed around a tape recorder."
Part of it's longevity and appeal is how simple the system was - even 11 Year-old me could grasp the memory layout and experiment with writing assembler. I expect I'll still be hacking away on it in another 40 years!
[1] - I wrote a series of blog posts on how I mashed up a modern GitOps/k8s dev environment with 1980s Sinclair BASIC to build a community site: http://www.markround.com/blog/2021/12/21/devops-for-the-sinc...