Hi, I'm Maria.
I design, build and grow apps for humans and AIs.
I'm a scientist turned founder and builder, with a PhD on how people learn and make decisions. After academia, I co-founded Skin Bliss and built it remotely while living in eight different countries. Now I've settled in Barcelona, where I build my own apps and tools for AI agents. I also help other people build theirs. Work with me!
What I made
Skin Bliss3M+ downloads
Know whether a skincare product suits your skin before you buy it.
fideliusLive
Let your AI coding agents use your API keys without reading them.
Pattern RushLive
A quick puzzle you can play against friends in real time, a few minutes at a time.
N-dayLive
For routines that repeat every few days, not on fixed weekdays.
SpellbookComing to Mac
Type a short trigger anywhere on your Mac and get the full text, or the result of a command.
Claude Code DashboardPublic on GitHub
See what your Claude Code setup costs in context, and manage it in one place.Matrix agent meshPublic on GitHub
Run AI agents on private knowledge without that knowledge leaving your hardware.
Vino TintoWaitlist
Speak Spanish with a patient tutor before you speak it with people.
Biome BlissWaitlist
Find out which foods your gut tolerates, one experiment at a time.Work with me
Freelance, or a few days a week. Tell me what you are building and where it keeps getting stuck.
- Coding agents and internal tools for your team, set up so they use your keys without ever reading them
- Private AI on your own hardware, so company knowledge never leaves the building
- An AI feature inside your app, from first prototype to the App Store
- A mobile app from idea to the App Store and Google Play
- A paywall, pricing and onboarding review for apps that get downloads but not revenue
- Part-time product lead, one to three days a week