First time seeing that, but yes, seems similar in concept. Iocaine can be self-hosted and put in as a "middleware" in your reverse proxy with a few lines of config, cloudflare's seems tied to their services. Cloudflares also generates garbage with generative models, while iocaine uses much simpler (and surely more "crude") methods of generating its garbage. Using LLMs to feed junk to LLMs just makes me cry, so much wasted compute.
Is iocaine actually newer though? Its first commit dates to 2025-01, while the blog post is from 2025-03. I couldn't find info on when Cloudflare started theirs. There's also Nepenthes, which had its first release in 2025-01 too.
If engines are hard to build, why not build a car 3x the size of a normal one, well you can but due to things like aerodynamics, etc etc you'll never match the speed or fuel economy of cars.
Same with chips, efficiency, speed, etc all depend on good design, and cutting edge factors, if the main reason your chip isn't faster is because of the distance between your L1 cache and your core is far, then having a bigger node process but bigger chip won't make it quicker.
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