Cuida is a free, open-source web app built for families caring for a sick relative at home. It brings together everything you need to know: medical contacts, medication, emergency protocols and caregiver schedules — accessible from everyone’s phone.
It grew from a real need: coordinating a family of ten people around a grandfather with cardiorespiratory failure, continuous oxygen and morphine, supported by a palliative home care team (PADES). When you arrive at the emergency room at three in the morning, you can’t be searching for the GP’s name or which morphine dose he takes. Cuida has it all, one tap away.
The physics, solved on your phone
A pinhole camera has no lens. Just a hole. And that hole dictates everything: the light that enters, the time required, the light captured on film.
The problem is that pinhole physics leaves no room for calculation errors. An effective aperture of f/128 or f/180, combined with the reciprocity characteristics of each emulsion, produces numbers that are hard to work out in your head. Until now.
Some tools make noise. Others simply solve things.
Positivitzador was born from a very specific need: understanding what you’re looking at when working with negatives. No gimmicks, no pointless filters. Open the camera, look… and see the image as a positive.
Designed for darkrooms, workshops, and photochemical processes, this small web app does one thing —and does it well—: invert the image in real time so you can read light, contrast, and composition with clarity.