Kaloyan Krastev

Projects

Here are some of the more notable projects that I've done/participated in that have not been lost to time, they are in descending chronological order.

The Hardware Bench (2026-Present)

This year I started moving toward physical computing: a Prusa Core One, an Arduino kit, a soldering station, and a steady supply of end-of-life electronics I rescue and take apart. I document the journey in dedicated research projects: picking and running the printer, learning electronics from the ground up, and a field guide to taking donor devices apart. The long-term goal is to become as fluent in hardware as I am in software, so I can deliver custom solutions in custom 3D-printed enclosures.

Lesto Product - Digitalization Suite (2025-Present)

The family of internal applications I develop at Lesto Product: Quality Control, Floor Plan, Law Watchdog, Dynamic DB Backups, Instruction Center, the company hub, and the fully reworked employee issue and suggestion system, plus the software side of the vending machines we produce. It is all internal software, so I cannot link any of it here, but it is used every day across the company.

The Humble Hub Ecosystem (ongoing)

A self-hosted start page (humble-hub) and the fleet of personal apps around it, built for myself and used daily: babble-building explores operating the PC by voice, curated-cool-content is a personal "hacker news" built only from sources I trust, little-lidl-list scans Lidl Bulgaria's weekly offers and scores them for a training diet, and more keep joining. These and the rest of the public ones live on my GitHub.

Company Issue & Suggestion System - Voice of Employees

A software to vastly improve the communication and tracking of the connected issues and possible improvement inside a company. The core idea of the project is to allow easy communication between the different employees of a company which is often made difficult due to pen and paper solutions or interpersonal communication problems. Voice of Employees won the Lean Institute Bulgaria's 2023 Operational Excellence Award for Employee Engagement. Here is a photo of me accepting our reward and giving a speech.

Augmented Reality Greek God Defense Game

We made the project for the football club Herakles Almelo as they wanted a half-time activity to keep their fans engaged. Inspired by their mascot Herakles - we made a Greek God themed tower defense game in augmented reality. The idea is for every fan sitting in the stadium seats to be able to enjoy some quick action-packed entertainment while they are waiting for the football match to resume. This project concluded here since it was happening in the midst of the pandemic and the focus of the client had to shift entirely.

Hack Vratsa 2016 Winning Project - Browser Adventure Game

Together with a group of friends from school we decided to participate in our first ever Hackathon. We made an adventure game with different characters and scenarios that can be played in the browser. To our amazement we ended up winning first place and were awarded with a visit to the European Parliament in Brussels.