sertxu@eu-south-2 :~$   
▶Sergio Peris (aka. Sertxu)
▶Full-Stack developer & SysAdmin
▶Xàtiva, València (Spain)
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Sergio Peris
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About me

Hi! I'm Sergio Peris, known as Sertxu — a Full-Stack Developer and SysAdmin based in Xàtiva, Valencia (Spain). I currently lead IT operations as IT Manager at a local company, where I focus on reliability, performance, and building clean, maintainable systems.

I work with a range of technologies, including Laravel, Node.js, and C#, among others. Beyond my day-to-day work, I'm an open-source maintainer and content creator who enjoys turning complex ideas into knowledge worth sharing.

Projects

Selected projects I've built and contributed to.

Cuelist

Cuelist

Helps you coordinate your team in a live show.

Windows Commercial Software
Laravel Translations Checker

Laravel Translations Checker

Check Laravel translation files for missing keys, files, and empty values. Integrates with CI/CD pipelines.

Laravel Package Open Source
Laravel Media Model package

Laravel Media Model package

Attach media files to your Laravel models and create media collections.

Laravel Package Open Source
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Blog

Thoughts on development, infrastructure, and the tools I use.

How to upgrade a MicroK8s cluster

Learn how to upgrade your MicroK8s cluster to keep it up-to-date without affecting your highly available services.

Tutorial MicroK8s

Sync Windows server time using NTP server

Scheduled tasks were being dispatched early because the time server was not precise. Sync your Windows server time using an NTP server so time never drifts.

Windows Tutorial Networking

Deploying a FastAPI app to Kubernetes with health probes

Health probes can be configured in Kubernetes deployments to monitor if our pods are working as expected and are ready to receive traffic.

Tutorial Kubernetes Python

Switching a Zebra printer to Thermal Transfer Mode with ZPL

Configure the print method of your Zebra printer using ZPL commands. Set Direct Thermal or Thermal Transfer, and persist the change between boots.

Tutorial ZPL Printers

Configure static IP address on Netplan

Every server needs a static IP address to work as expected. On Ubuntu, you have to use Netplan to configure a static IP address.

Tutorial Networking Ubuntu Linux

Convert VirtualBox VDI disk to VMware VMDK disk

Using a utility from QEMU you can convert a VM drive to another disk format, so you can boot it using another hypervisor.

Open Source Tutorial
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Contact

Want to get in touch? Let's talk!

sertxu@eu-south-2 :~$ contact
▶ What's your email?
▶ What do you want to talk about?
▶ Is the information correct? [y/n]
sertxu@eu-south-2 :~$ whoami --connections
▶ GitHub → github.com/sertxudev ▶ LinkedIn → linkedin.com/in/sertxudev