I've been building Calibra, an open-source dataset observability and coreset optimization tool for robot learning.
It checks things like timestamps, duplicate/frozen frames, blurry cameras, jerky motion, action-state divergence, quality, and behavioral coverage.
The interesting part is the optimization side: across several public robotics datasets, we've found that quality-aware selection can preserve model performance while using substantially less training data than the full dataset or random selection.
I run eight free browser tools as a public build-in-public SEO portfolio. Today I stopped doing homepage-only checks and crawled every sitemap URL across all eight sites.
For the last few months I've been building MarginFlow solo, no team, no funding.
The problem: every agency owner knows this pattern. A client emails "hey can you also just add X" sounds small, feels rude to push back on, so you just do it. One email. Then five. Then your 40-hour project quietly became 65 hours and nobody billed for the extra 25. By the time you notice, the project's wrapped and it's too late to invoice for it.
What MarginFlow does:
- Connects to Gmail (read-only it never sends anything on your behalf)
I usually spend my time helping founders turn ideas into real products from figuring out what to build to designing, developing, launching, and improving it.
After months of late nights, testing ideas, and rebuilding things more times than I can count, I finally launched something I ve been dreaming about for a while: Vegalyx.
