Latest posts from Coderr
Insights, releases, and engineering notes.

Case studies
6/12/2026
4 min read
Why your customers shouldn't be filling your calendar through Instagram DMs
At Salon Milan, appointments came in by phone and DMs — mid-haircut. Here's how we fixed that, and what any appointment-based business can learn from it.
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Case studies
6/26/2026
5 min read
Selling knowledge without handing over a 30% platform fee
Course platforms charge commission and own your customer relationship. For Leer Online Boekhouden we built an in-house learning platform: iDEAL, certificates, progress — all self-owned.
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AI
7/10/2026
5 min read
What an AI assistant really costs your business (less than you think, different than you think)
It's not the model that's expensive — wrong expectations are. A level-headed look at AI costs, EU hosting and GDPR for SMEs, from our own assistant projects.
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