Background A nasty surprise Last summer while trying to deliver a feature for one of our customers, I encountered a nasty situation. The software we were developing, depended on a production grade license of Gurobi. People were on vacations except of my team and some unrelated staff, so developing the feature was in principle blocked. As I learnt due to some other situations, research
A deep, opinionated, practical guide for the human running a software business alone. Hard-won lessons, decision frameworks, and the actual mechanics of going from idea → first dollar → first $10K MRR → first $1M ARR — without a co-founder, without a team for as long as possible, and without burning out. If you read only one section first, read §2 Mindset, §4 Validation, and §6 Distribution-First.
A few years ago I solved 200 LeetCode problems and still froze on Mediums I hadn't seen. The breakthrough wasn't another hundred problems. It was a different loop. A problem asks for the longest substring with at most K distinct characters. You've solved sliding window before. Maximum sum subarray of size K, done. Longest substring without repeating characters, done. This third one stalls you. Twe