Sergio Fernández Carrasco

From design to product.

Apps

Four apps on the App Store

Almia, Temfugis, Sheepify and Mathaton. No accounts, no ads: your data stays on your device.

See the apps →

Home screen with the lit flame and a button to log today
Almia
Live round: target and operations falling against the clock
Mathaton
Game board: sheep grazing in the fenced meadow
Sheepify
Today, with Sundays lived and today's practice
Temfugis

Hardware

Geo-Ovejas: collars where the network does not reach

A dehesa in Extremadura, without stable mobile coverage.

CollarLoRa 868GatewayPi + 4GApp

Project →

Websites

Content that publishes itself

Own network

An affiliate content network with an automated pipeline.

  • gugutuku
  • wautuku

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Web design and development

Custom websites.

  • Torres Valdecar
  • Manuel Rodríguez

See the work →

Restoration

Golf GTI Mk2 (1990)

Six months of restoration through to registering it as a Historic Vehicle. The same method, in a new domain.

See the project →

About

Who's behind this

Over a decade in operations and continuous improvement (Green Belt Lean Six Sigma) across industrial and logistics settings. Since 2024 I apply that discipline to my own projects: I run a portfolio in parallel across several domains —iOS apps, LoRa hardware, websites and automation— with data before opinions.

Green Belt Lean Six Sigma · 10+ years in operations · Google AI Certificate

In parallel right now

  • Almia · iOS app
  • Temfugis · iOS app
  • Sheepify · iOS app
  • Mathaton · iOS app
  • Geo-Ovejas · LoRa hardware
  • Web network · Websites

More about me →