David Serret

About

Building software at the intersection of engineering and real-world problems. Studying Software Engineering at SDU (Denmark) and Physics at UNED (Spain) simultaneously.

Stack

Projects

Routr

Next.js · TypeScript · Duffel API · Upstash Redis · Vercel

Live ↗ Repo ↗

Flight search reimagined — built on live data from the Duffel API.

✦Multi-airport search across origins and destinations simultaneously

✦Price calendar to shift dates and find cheaper fares

✦Advanced filters: stops, layover duration, cabin class, airlines

✦Redis caching to reduce latency and API cost

Checklist Bot

Next.js · NextAuth · Supabase · Tailwind · Python

Live ↗ Repo ↗

Task management web app for Discord server teams.

✦Discord OAuth sign-in via NextAuth

✦Hierarchical structure: projects → sections → subsections → tasks

✦Real-time progress tracking and sprint support

✦Companion Python bot for in-channel task management

Strikepool

Next.js · TypeScript · Supabase · Tailwind · Resend

Live ↗ Repo ↗

Real client project — table reservation system for a billiard bar in Terrassa.

✦Real-time availability via Supabase Realtime

✦Email confirmations and 1h reminders via Resend

✦Protected admin panel with weekly calendar and time blocking

Happinest

Laravel · PHP · MySQL · Blade

Live ↗ Repo ↗

Web platform for animal shelters — built to help animals find homes faster.

✦Adoption listings with photos, status and request flow

✦Volunteer coordination and foster family management

✦Blog covering pet care, adoption stories and animal welfare

DeskUp

Laravel · Python · Tailwind · Docker · Raspberry Pi Pico W

Repo ↗

IoT · Embedded · AI

Smart office platform for height-adjustable desks — web + embedded + AI.

✦Real-time desk height control and user session tracking

✦AI posture analyzer via Python + MediaPipe

✦Raspberry Pi Pico W embedded controller with OLED display

✦Automated cleaning schedules and 3D office layout (Three.js)

HPO Analyzer

C# · Avalonia · .NET · Danfoss

Download ↓ Repo ↗

Desktop tool built in collaboration with Danfoss to optimize industrial heat production.

✦Multi-parameter optimization: cost, CO₂ emissions, fuel efficiency

✦Winter / summer scenarios with configurable production units

✦Interactive charts with zoom, auto-scale and CSV export