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CLI to order groceries via reverse

Show HN: CLI to order groceries via reverse-engineered REWE API (Haskell)

20 AI Score
Show_hn Added Mar 31, 2026

Details

Total Funding
$0
Last Round
$0

About

I just had the best time learning about the REWE (German supermarket chain) API, how they use mTLS and what the workflows are. Also `mitmproxy2swagger`[1] is a great tool to create OpenAPI spec automatically.<p>And then 2026 feels like the perfect time writing Haskell. The code is handwritten, but whenever I got stuck with the build system or was just not getting the types right, I could fall back to ask AI to unblock me. It was never that smooth before.<p>Finally the best side projects are the ones you actually use and this one will be used for all my future grocery shopping.<p>[1]<a href="https:&#x2F;&#x2F;github.com&#x2F;alufers&#x2F;mitmproxy2swagger" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;alufers&#x2F;mitmproxy2swagger</a>

AI Score Reasoning

This is a technical side project rather than a viable startup, as it relies on a reverse-engineered API that presents significant legal and platform risks. The market for CLI-based grocery shopping is extremely limited to a niche developer audience, offering no clear path to venture-scale growth.

Source

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