nip.io. "NIP.IO maps <anything>.<IP Address>.nip.io to the corresponding <IP Address>, even 127.0.0.1.nip.io maps to 127.0.0.1" - looks useful. xip.io is a different service that does the same thing. Being able to put anything at the start looks handy for testing systems that handle different subdomains.
Recent articles
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- My answers to the questions I posed about porting open source code with LLMs - 11th January 2026