Hi, I'm Bruno.
I build custom software for people who don't have an IT team.
I'm a developer at Renuo AG, I live in Zürich and I have built software since 2020. Besides my job, I build systems for clients. Sometimes they are new, and sometimes an existing one needs to be fixed or replaced.
I believe your own system shouldn't be something only big companies can pay for.
«Better than saying is doing, and better than promising is achieving.»
Projects
Two are for clients and two are mine. For each one I explain how things worked before and what changed.
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Celledig, a tech shop in Viedma · 2026
Celledig Store
- Before
- The price list was an Excel file of 130 devices, sent over WhatsApp and redone every time the dollar moved.
- Now
- A web storefront for a tech shop in Viedma, Argentina. Peso prices update on their own with the day's dollar rate, and orders still arrive on WhatsApp.
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Lacaniosa, a social media community of psychologists · 2026
Lacaniosa
- Before
- Appointments in a paper diary, notes in a notebook, payments in a spreadsheet and arrangements with patients on WhatsApp.
- Now
- An online practice for the Lacaniosa community of psychologists. Schedule, patients, session notes, payments and expenses in one place, built for the ten minutes between one patient and the next.
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Own product · 2026
Milprep
- Before
- Everyone eats differently, and deciding what to cook, how much and what to buy was a chore every Sunday.
- Now
- Plans a household's meals for the week. Everyone eats the same dish, each in their own version and portion, and the shopping list writes itself.
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Own product · 2026
UolDT
- Before
- UOL DT closed in 2006. By March 2004 it already had 26,000 teams.
- Now
- A new version of UOL DT, the Argentine football-manager game played in the browser between 2003 and 2006. Matches play live, narrated like a radio broadcast.
How I work
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We start with a call. You tell me how you do things today and what takes up most of your time.
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I'm not tied to any technology. I use whatever works best for your project, and I aim to keep it cheap to run each month.
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If you already have an old system, you don't have to throw it away. It can be fixed, improved or replaced step by step.
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Every part has automated tests. If a test fails, the change does not ship.
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If you want to manage products, prices or data yourself, you get a panel for it.
Got an idea? Write to me.
It can be something that is still only in your head, or a business that already works and needs a system. You don't need to have it all worked out, know about technology or have a big budget.
First tell me the idea. Then we'll work out together how to make it real and where to start.
I answer myself.
How working with me goes →On the blog I write about things I learn at work. Now and then I also send fixes to Rails and other gems.