Projects
Things I build outside work, to learn by doing and to be useful to someone. All of them are open on this site, free, and keep growing.
Featured · for the community
Social project
amardoar
Direct giving to charities in southern Brazil.
A showcase of trustworthy charities, with Pix donations that go straight to each one, without the site in the middle of the money. Whoever gives gets an angel in the site's sky, with wings that grow with each donation. In Portuguese.
- 49charities
- 19cities in southern Brazil
- 27receive Pix through the site
Payments lab
Paygrama
A payment, drawn from the inside.
Pick a card, Pix or Open Finance payment, inject a failure and watch every message between terminal, sub-acquirer, acquirer, card network, issuer, DICT and the Central Bank, with the technical content of each step: ISO 8583 fields, MDR, interchange and the receivables schedule. In Portuguese.
- 449scenarios
- 3,116messages to explore
- 36participants
Public money
Brasil a Olho Nu
Where the money of your city, your state and the country goes.
Everyone pays taxes, but almost no one knows where the money goes. The site turns the official accounts the governments send to the National Treasury into three plain-language steps: how much was collected, how it was spent and how much politicians cost. In Portuguese.
- 323governments with their own page
- 295cities of Santa Catarina
- 2020–2025years of official data
Wildlife
faunoteca
A living library of Brazilian wildlife, starting with snakes.
Species profiles with photos under free licences, occurrence maps from GBIF and IBGE, and practical guides, such as what to do when you find a snake. Health and law always with an official source. In Portuguese.
- 15species profiles
- 7snake families
- 2practical guides
Game
Soccer Deal
A football manager game where every signing is a negotiation.
You run a Brazilian club through state championships, the national league and continental cups. AI talks with you in negotiations and press conferences, but the rules decide the outcome. Plays in the browser. In Portuguese.
- v1.2.0current version
- Freeto play in the browser
Audio
fghisi podcast
Books, articles and lessons on tech and leadership, in audio.
What I read, wrote or lived, what I think about it and what is worth applying on Monday. The script starts from my notes; the narration is generated by AI from my voice. In Portuguese.
- 1episode