Rafal MuszynskiPersonal notes on building products, design, and software engineering.https://rafalmuszynski.pl/I gave myself a team of AI engineers that open their own PRshttps://rafalmuszynski.pl/posts/2026/i-gave-myself-a-team-of-ai-engineers-that-open-their-own-prs/https://rafalmuszynski.pl/posts/2026/i-gave-myself-a-team-of-ai-engineers-that-open-their-own-prs/Agents that pick up a ticket and open their own pull requests — several at once. The demo took an afternoon; wiring the credentials and permissions took the rest.Sun, 07 Jun 2026 09:00:00 GMTThe distribution problem nobody talks abouthttps://rafalmuszynski.pl/posts/2026/the-distribution-problem-nobody-talks-about/https://rafalmuszynski.pl/posts/2026/the-distribution-problem-nobody-talks-about/The real distribution bottleneck isn’t strategy. It’s the founder who won’t press publish.Thu, 04 Jun 2026 09:00:00 GMTWhat founders see that employees don'thttps://rafalmuszynski.pl/posts/2026/what-founders-see-that-employees-dont/https://rafalmuszynski.pl/posts/2026/what-founders-see-that-employees-dont/After selling a company and taking a regular job, the org looks different — and that lens never quite goes away.Sat, 23 May 2026 09:00:00 GMTHow I built a RAG Slack bot (and what I learned making it useful)https://rafalmuszynski.pl/posts/2026/how-i-built-a-rag-slack-bot/https://rafalmuszynski.pl/posts/2026/how-i-built-a-rag-slack-bot/Three failures that taught me RAG is mostly normal engineering — a silent retrieval bug, undersized chunks, and a self-contradicting prompt.Thu, 14 May 2026 07:00:00 GMTHow I use Claude Codehttps://rafalmuszynski.pl/posts/2026/how-i-use-claude-code/https://rafalmuszynski.pl/posts/2026/how-i-use-claude-code/A year of daily use. Config files, skills, hooks, and the workflow that actually stuck.Thu, 26 Feb 2026 09:00:00 GMTHow I became an 'overnight artist' (thanks to AI)https://rafalmuszynski.pl/posts/2025/overnight-artist-ai/https://rafalmuszynski.pl/posts/2025/overnight-artist-ai/I painted my first ever canvas with zero experience, guided step‑by‑step by AI.Tue, 04 Feb 2025 09:00:00 GMTPrivate beta for my second SaaS: BetterFeedbackhttps://rafalmuszynski.pl/posts/2021/private-beta-betterfeedback/https://rafalmuszynski.pl/posts/2021/private-beta-betterfeedback/Announcing a private beta, what I’m building, and how I help teams understand customer feedback faster.Thu, 09 Dec 2021 09:00:00 GMTFour years building a bootstrapped SaaS (and the acquisition)https://rafalmuszynski.pl/posts/2021/harmonizely-bootstrapped-saas-acquired/https://rafalmuszynski.pl/posts/2021/harmonizely-bootstrapped-saas-acquired/A short reflection on building Harmonizely for four years, the transition to full-time, and what came next.Sun, 26 Sep 2021 09:00:00 GMTHow I started my SaaS side project while working full-timehttps://rafalmuszynski.pl/posts/2018/how-i-started-saas-side-project/https://rafalmuszynski.pl/posts/2018/how-i-started-saas-side-project/A candid look at building Harmonizely nights and weekends: validation, MVP, beta, and the first paying customer.Thu, 22 Nov 2018 09:00:00 GMT