Dice games, generators of random structures, REST servers, small compilers. I mostly learn domain-specific languages where the use-case is more given. With An

Dice games, generators of random structures, REST servers, small compilers. I mostly learn domain-specific languages where the use-case is more given. With Ansible I created scripts for bootstrapping VPS'es and laptops with dot-files and some suite of default programs, scripts for hardening OpenSSH. For jq I went to IRC and StackOverflow and tried to solve other people's jq problems. Many years ago when learning regex, I'd solve a regex quiz. For front-end web-frameworks I usually create a tamagotchi or a questionnaire. (I mostly do back-end, compilers and DevOps, but I'm full-stack.)