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SIU Bot es una plataforma que automatiza el proceso de inscripción a materias en SIU Guaraní, el sistema académico usado por la mayoría de universidades públicas y privadas de Argentina.
El problema: las inscripciones se abren en horarios fijos y los cupos vuelan en minutos. Los estudiantes terminan pegados al navegador a las 7 AM, peleando con CloudFlare, captchas y saturación del sistema. Muchos se quedan afuera de las materias que necesitan.
La solución: el usuario carga sus credenciales (cifradas en reposo con AES-256-GCM) y la lista priorizada de materias. Cuando se abre la ventana de inscripción, el bot se inscribe en su nombre en paralelo, con detección automática de CloudFlare/captcha, backoff exponencial con jitter, y reintentos resilientes.
Alcance: 28 universidades soportadas, 148+ carreras mapeadas, cron jobs sub-minuto, cache compartida multi-usuario y audit logs de cada intento.
The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started
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Stunning 🥰
Social Media Platform · UX Design & Web Development
Designed and developed a high-converting landing page for a next-generation social media platform.
The goal: help founders and growth teams turn website visitors into users, faster.
Strong UX design reduces bounce rate, builds credibility, and directly impacts your bottom line. This project was a full end-to-end execution from wireframes to live deployment.
Looking to build a landing page that actually converts? Let's talk.
Check out the live site: suuvo.com
I'm a developer and I kept running into the same frustrating problem when delivering work to clients: I'd redesign a website, rework a layout, or overhaul a visual identity - and I had no good way to actually show what changed.
I wanted something where I could upload a full-height before screenshot and a full-height after screenshot - the kind that are 4000-6000px tall - and let the client scroll through both, see exactly what moved, what was added, what was removed. Everything I found either cropped the image, didn't support full-page screenshots, or gave you a basic slider with zero context.
So I built my own using Next.js, Firebase, Clerk and Stripe.
Splice View allows you to:
Upload full-height before & after screenshots (the entire page or design, not just what's visible on screen)
Add numbered annotation boxes directly on the image to call out specific changes
Share a single link with your client - no login required on their end
They scroll through the full comparison and see exactly what changed and where
It works for anything visual - website redesigns, landing page updates, UI mockups, graphic design revisions, app screens. If you deliver visual work to clients, this is for you.
Right now it's desktop-optimized and focused on photo comparisons with annotations. We're still in the beta so you might find bugs. Video recording mode is in the works.
The deal:
You can use the app without restrictions. All I ask in return is honest feedback - what's confusing, what's missing, what would actually make this part of your workflow.
Thank you for the attention!
Looks like a cool project
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