When Your Side Project Gets Serious

There’s a moment when your side project starts to feel like more than a side project.

For me, it happened when a marina operator asked: „Can we get an SLA?“

An SLA. A Service Level Agreement. For something I built in my home office on weekends and evenings — completely separate from my day job.

Let me be clear: my role at CRIF is my priority and my passion. Everything I share in this series is about what I do in my own time, as a creative outlet and learning accelerator. Side projects don’t compete with my main work — they complement it.

That question from the marina operator forced me to level up my side-project game fast.

🔒 Security got real

No more „admin/admin“ test credentials left in the code. Proper authentication. Role-based access. Data encryption. GDPR compliance (this is Germany, after all).

📊 Monitoring got real

I needed to know when things broke BEFORE customers told me. Error tracking. Uptime monitoring. Performance dashboards. Automated alerts.

📝 Documentation got real

„I know how it works“ stopped being acceptable when someone else needed to use it. User guides. API documentation. Onboarding workflows.

📋 Processes got real

Changelog for every update. Staged deployments. Backup strategy. Disaster recovery plan (yes, even for a solo weekend developer).

The transition from „weekend hack“ to „something people actually rely on“ isn’t about features.

It’s about reliability, trust, and professionalism — lessons that apply everywhere, including my day-to-day at CRIF.

My Paperless-ngx integration taught me the same lesson differently. When I forked the open-source document management system and added RAG-based semantic search and an analytics dashboard, it was a fun weekend experiment.

When businesses wanted to use it for their actual document workflows? Suddenly „fun experiment“ needed to be bulletproof.

Here’s the uncomfortable truth about the indie hacker journey:

Building the product is the fun part. Building the business around it is the hard part.

Code is forgiving. Customers are not.

But that’s exactly what makes side projects worth doing — they push you to grow in ways no course or tutorial ever could. And those skills flow right back into your professional work.

Full story in my article series 👇

This is part of my 7-part series on vibe-coding. Follow along to see what happens when a non-developer starts building — on nights and weekends.

This post is part of my series on vibe-coding and building apps without traditional coding skills. All articles in the series →