Android · Kotlin01
Barrioteca — Android App
Loan management, barcode scanner, local login and background sync built with Jetpack Compose.
01 · About me
Technology, in service
Technology, in service
of people.
I believe technology should behave like a good butler: discreet, attentive, almost invisible. There when you need it, out of the way when you don't. So I build software that bends to people, not the other way around.
I have never studied programming, or anything like it: I am entirely self-taught. I have always devoted myself to volunteering and to work in service of people; computing, on the other hand, is my true passion. And lately I have discovered that there is no greater pleasure than working at what is your calling.
Over the last few years I have shaped, end to end, the digital products of Barrioteca Acalencá and the Lebeche association: Android and iOS apps, a web app, a backend and the infrastructure that holds them. Every line of code, an act of care.
Under the DiploTech brand I gather this craft: honest technology, in service of those who use it.
02 · Technologies
Stack
Android
KotlinJetpack ComposeCameraXWorkManagerFirebase
Web
TypeScriptReactViteTailwindHTML/CSS
iOS
SwiftSwiftUIWKWebView
Backend
PHPMariaDBREST APIsDocker
Systems
LinuxNginxBashSynology (NAS)
03 · Selected work
Projects
Real products, in production, designed and developed end to end.
Android · Kotlin02
Mondera's App
CalDAV calendar, mail, web and drive unified in a single app for Lebeche's organizers.
Web · React03
Barrioteca — Web/PWA
React 19, Vite and Tailwind frontend. Instant interaction with no service workers breaking updates.
Web · HTML/CSS/JS04
Lebeche Official Website
Static, indexable site fed by JSON, with its own admin panel for editing content.
iOS · Swift05
Barrioteca — iOS
Native wrapper (WKWebView + SwiftUI) with camera access for the barcode scanner.
Backend · PHP06
SLiMS Backend
REST API and ISBN import scripts on top of SLiMS (PHP 8 + MariaDB).
Systems · Linux07
TapeOS
A free-software operating system made in Andalusia, based on ChromeOS/ChromiumOS with optional Google Apps.
Infrastructure08
NAS Infrastructure
Self-hosted stack: Nginx rules, encryption and reverse proxies serving multiple projects from a Synology Web Station.
Systems · Hackintosh09
Hackintosh — macOS on PC
macOS Sonoma 14 on non-Apple hardware (ASUS Z590 + i5-11600K + GTX 970): OpenCore EFI, rEFInd dual boot, OCLP graphics patching and Intel Wi-Fi/Bluetooth.
Android · Reverse engineering10
GBOS-PixelTablet
Reverse engineering and port of the GoogleBookOS (Aluminium OS, Android 17) desktop UI to an unrooted Pixel Tablet: EROFS partition extraction, APK auditing, aconfig/Phenotype flag analysis and a native launcher app.
04 · Contact
Get in touch
Let's talk
If you want to discuss a project, a collaboration, or just chat about technology, I'd be glad to hear from you.