Efe Marko Güldere

Junior Developer and IT Operations Specialist at JELD-WEN Eesti AS, based in Rakvere, Estonia.

I build web applications, maintain IT infrastructure, and work on homelab and open source projects in my spare time.

Most recently I've been sending fixes upstream: three merged into projects I don't maintain.

GitHub LinkedIn Email Printables CV (PDF)

Work

One employer, three roles.

Apr 2026 - present

Junior Developer and IT Operations Specialist

JELD-WEN Eesti AS

Building web applications and keeping the IT infrastructure behind them running.
Sep 2024 - Mar 2026

Web Developer (internship)

JELD-WEN Eesti AS

The third internship at the same company and the first on the development side, which turned into the developer post above.
Feb 2023 - Aug 2024

IT Support Technician

JELD-WEN Eesti AS

Two internships at the same company, on the IT support side.

Projects

14 things I've built, newest first. Language, stars, dates and live links come from the GitHub API when the site builds.

Public repositories by primary language 62 classified, forks excluded

JavaScript 17
HTML 11
Shell 5
TypeScript 5
Java 4
Python 4
PowerShell 3
Rust 3
Go 2
PHP 2
Batchfile 1
CSS 1
Mermaid 1
PLpgSQL 1
QML 1
Svelte 1

2026 Rust

lanping

Finds every device on your network. A desktop app in Rust, no admin rights.

Rust
Iced
tokio
SNMP
mDNS

lanping

Finding out what is on a home network usually means a root shell and nmap, or a router page that lists half of it. LanPing scans the network without admin rights, names each device from what it announces about itself, and shows its vendor, latency and open ports. It has grown into a small toolbox: Wi-Fi channels, trace and latency graphs, speed tests, DNS, TLS and email checks, SNMP traffic, UPnP port forwards and syslog. A command line version runs the same checks from scripts and cron. Builds for Linux, Windows and macOS are on the releases page; the macOS one is untested.

Rust
Iced
tokio
SNMP
mDNS

2026 Updated Nov 2026 Rust 1 ★

Repository

2026 JavaScript

ha-relay-panel

Turns relays into simple thermostats in Home Assistant.

JavaScript
Node
MariaDB
Home Assistant
self-hosted

ha-relay-panel

Running a relay as a thermostat in Home Assistant means hand-writing an automation for every room. This panel puts relays on a board, binds each to a temperature sensor and a set point, and writes the automation itself. If a sensor goes unavailable, the relay switches off.

JavaScript
Node
MariaDB
Home Assistant
self-hosted

2026 Updated Oct 2026 JavaScript 2 ★

Repository

2025 - 2026 QML

hyprland-dots

My Hyprland desktop shell, written from scratch in QML.

QML
Quickshell
Hyprland
Wayland

hyprland-dots

Most Hyprland setups stitch together other people's widgets, each with its own look and its own bugs. I wrote the whole shell in QML instead (bar, notifications, launcher and on-screen displays), so it all looks and behaves the same. It's what I run every day.

QML
Quickshell
Hyprland
Wayland

2025 - 2026 Updated Nov 2026 QML 6 ★

Repository

2026 TypeScript

peaport

A web control panel for Podman and Docker, with users and roles.

TypeScript
Next.js
Podman
Docker
RBAC

peaport

Running containers for other people means sharing SSH or handing out the engine socket, which is root on the host. Peaport puts Podman or Docker behind a web panel with per-user roles: containers, Compose stacks, images, volumes, networks and pods, plus encrypted secrets, an audit log, live metrics and a terminal in the browser.

TypeScript
Next.js
Podman
Docker
RBAC

2026 Updated Nov 2026 TypeScript

Repository

2026 TypeScript

cc2-commander

Shares the Elegoo CC2 printer's single MQTT connection with every tool.

TypeScript
Bun
MQTT
Moonraker
Prometheus

cc2-commander

The Elegoo Centauri Carbon 2 has a single MQTT slot, so only one client can talk to it at a time. This service holds that slot and shares it: a web dashboard, Mainsail and Fluidd through a Moonraker-compatible API, Prometheus and Telegram all work at once. It began as a fork of runnane/elegoo-web.

TypeScript
Bun
MQTT
Moonraker
Prometheus

2026 Updated Sept 2026 TypeScript

Repository

2026 Rust

wren

A GNOME-style file manager, written in Rust on GTK4.

Rust
GTK4
libadwaita
GNOME

wren

A file manager written from scratch with GTK4 and libadwaita. Tabs keep their own history, grid and list views show cached thumbnails, copies report progress and ask before overwriting, renames can be undone, and the keyboard shortcuts match Nautilus.

Rust
GTK4
libadwaita
GNOME

2026 Updated Oct 2026 Rust 1 ★

Repository

2026 HTML

tailboard

One page for all my self-hosted services and their status.

self-hosted
homelab
dashboard

tailboard

A dozen self-hosted services means a dozen bookmarks and no idea which one is down. Tailboard puts them all on one page with their status, so I can see what's running and what's down in one place.

self-hosted
homelab
dashboard

2026 Updated Oct 2026 HTML

Repository

2026 JavaScript

tailboard-companion

My Tailboard in a popup, the address bar, and right-click. On AMO.

browser extension
Manifest V3
Firefox
Chrome

tailboard-companion

The browser-side half of Tailboard, published on addons.mozilla.org. A toolbar popup searches my links, an address-bar keyword jumps to one, and a right-click launcher groups them. An optional toolbar badge counts services up or down, with options for the refresh interval, theme and where links open. It opens each link's reachable address, so a service stays one click away even when its main URL is down.

browser extension
Manifest V3
Firefox
Chrome

2026 Updated Oct 2026 JavaScript

Repository Live

uptime-kuma-compact-theme applied to a status page with placeholder monitors

2026 CSS

uptime-kuma-theme

A compact, full-width theme for Uptime Kuma status pages.

CSS
Uptime Kuma
dark theme

uptime-kuma-theme

Uptime Kuma's status page wastes a wall-mounted screen: wide gaps, uptime numbers overlapping names, ragged heartbeat bars. This is one CSS file for the Custom CSS field that packs monitors into a full-width grid, with status-coloured uptime pills and bottom-aligned bars.

CSS
Uptime Kuma
dark theme

2026 Updated Jun 2026 CSS

Repository

2026 Rust

gcode-viewer

A fast 3D viewer for G-code toolpaths on Linux.

Rust
egui
wgpu
WGSL
Linux

gcode-viewer

Checking a print before sending it meant opening a whole slicer just to look at the toolpath. Gcode Viewer opens a .gcode file on its own: orbit the model, scrub through layers, colour it by speed, feature or filament, and read off print time and filament use. It installs as the default app for .gcode files, with thumbnails in the file manager.

Rust
egui
wgpu
WGSL
Linux

2026 Updated Oct 2026 Rust 1 ★

Repository

2026 TypeScript

spawnpoint

Lets friends run their own Minecraft servers from a browser.

TypeScript
self-hosted
backups
console

spawnpoint

Friends kept asking me to spin up Minecraft worlds, which meant an SSH session every time. Spawnpoint puts start, stop, backups and the server console in a browser, so they can do it without me.

TypeScript
self-hosted
backups
console

2026 Updated Mar 2026 TypeScript

Repository

Home Assistant dashboard with the current price, today's statistics and an hourly price chart

2026 Python

ha-elering-ee

Estonian hourly electricity prices as a Home Assistant sensor.

Python
Home Assistant
Elering API

ha-elering-ee

Estonian electricity prices swing hour to hour, but Home Assistant couldn't see them. This pulls Elering's hourly rates into a sensor, so an automation can hold the dishwasher until the cheap window.

Python
Home Assistant
Elering API

2026 Updated Nov 2026 Python

Repository

The decoder showing a valid code: male, born 3 May 1976, aged 50, born on a Monday

2026 JavaScript

estonian-id-decoder

Decodes an Estonian personal ID code, in the browser.

JavaScript
no dependencies
client-side

estonian-id-decoder

An Estonian ID code holds a birth date, gender and checksum, but reading them by hand is easy to get wrong. This page decodes a code as you type: birth date, age, weekday, gender, serial number and whether the checksum holds. It runs entirely in the browser and sends nothing anywhere.

JavaScript
no dependencies
client-side

2026 Updated Nov 2026 JavaScript

Repository Live

A fish session where every pipe in the commands was typed by pressing Escape

2023 - 2024 Shell

esc2pipe

A fish plugin that makes Escape type a pipe.

fish
Fisher
shell

esc2pipe

Some keyboard layouts hide the pipe character behind a key combination a laptop can't produce. This plugin for fish makes Escape type a pipe instead.

fish
Fisher
shell

2023 - 2024 Updated Oct 2026 Shell

Repository

Open source

Work reviewed and merged by maintainers of projects I don't own.

merged
X-Sense for Home Assistant #275

Every request to the recordings panel returned HTTP 500. A readiness check was shelling out to ffprobe on Home Assistant's event loop, once per cached clip. On an install with 85 clips that came to 130 blocking-call errors in three minutes. I traced the call chain, moved the check onto a flag recorded where blocking work is allowed, and the panel returned to HTTP 200 with none.
merged
zigbee-herdsman-converters #12992

A device definition for the EZVIZ CS-T10C leak sensor. The generated fallback published a raw alarm bitmap; this maps it to a water_leak sensor and drops the alarm bit the ZCL zone type never sets.
merged
zigbee2mqtt.io #5460

The photograph for that same sensor, cut to the documentation's 512 px transparent-PNG convention.

Activity

5,409 contributions on GitHub in the last year.

Less More

3D modelling

A selection of coursework models. Tinkercad and SketchUp for the set exercises, Blender when the set tool was Windows-only. Where there is a file, turn the model around in 3D. Printable designs are published on Printables.

Renault FT-17, modelled in Blender — Renault FT-17 Blender

The set exercise expected a tool that only runs on Windows, which I don't use. I taught myself Blender over two weekends and modelled the tank there instead, with the hull plating, rivets and full running gear. The 3D view is a lighter copy, with the suspension springs and the rivets left out to keep the download small.

Lego brick 2x4, modelled in Tinkercad — Lego brick 2x4 Tinkercad

The first Tinkercad lesson: a 2x4 brick with its eight studs.

Single-storey house, modelled in SketchUp — Single-storey house SketchUp

Built from a drawing across three lessons. SketchUp's web version stalled once furniture came in from the model store, so I moved to the desktop application to finish it.

Castle, modelled in SketchUp — Castle SketchUp

Gate, curtain walls, a moat and a bowman's tower, worked up from a reference.

Education

Vocational, then applied higher education.

2026 - present

Arukad süsteemid ja rakendusinfotehnoloogia

Tallinna Tehnikaülikool

Professional higher education in smart systems and applied information technology. Three and a half years at the Kohtla-Järve campus, taught in Estonian. Started August 2026, alongside the job.
2024 - 2026

Junior Developer, EQF level 4

Viljandi Kutsehariduskeskus

AI-driven development, and the programming groundwork that makes it work: object orientation and the basics you need to judge whether generated code is any good. Most of it was about directing the tools and catching their mistakes.
2021 - 2024

Junior IT Systems Specialist, EQF level 4

Rakvere Ametikool

Networks and hardware with hands on the kit: CAT 5e through CAT 7 terminated by hand, punched down to 110 blocks and keystone panels, and a rack of Cisco switches and routers cabled properly enough to keep using after it was graded. Also where I learned to coax a configuration page out of an access point too old for a modern browser to render one.

Toolkit

What I've actually used in production or in my homelab.

Languages

Go
Python
TypeScript
JavaScript
Rust
PHP
Java
Shell
PowerShell
QML

Web and runtime

React
Next.js
Svelte
Node.js
Express
Bun
Gin
Vite
Tailwind CSS
jQuery
Nginx
Caddy
Apache

Data

MySQL
MariaDB
PostgreSQL
SQLite
Prisma
phpMyAdmin

Testing

Playwright
Vitest
Jest
pytest

Systems and networking

Linux
Windows
macOS
Active Directory
WireGuard
Tailscale
Cisco networking

Editors and tooling

Git
VS Code
VSCodium
Trello

Infrastructure and automation

Docker
Podman
Proxmox
Portainer
Ansible
Terraform
GitHub Actions
Prometheus
TrueNAS
DigitalOcean
ServiceNow

Self-hosted and smart home

Home Assistant
MQTT
Zigbee2MQTT
Node-RED
Uptime Kuma
Gitea
Jellyfin
Immich
AdGuard Home

AI tools

Claude
Cursor

Spoken languages

Estonian: Native
English: Professional working proficiency

Efe Marko Güldere Efe Marko Güldere

Work

Junior Developer and IT Operations Specialist

Web Developer (internship)

IT Support Technician

Projects

Open source

Activity

3D modelling

Renault FT-17 Blender

Lego brick 2x4 Tinkercad

Single-storey house SketchUp

Castle SketchUp

Education

Arukad süsteemid ja rakendusinfotehnoloogia

Junior Developer, EQF level 4

Junior IT Systems Specialist, EQF level 4

Toolkit

Languages

Web and runtime

Data

Testing

Systems and networking

Editors and tooling

Infrastructure and automation

Self-hosted and smart home

AI tools

Spoken languages

Efe Marko Güldere