projects

Things I have built

Side projects, open-source work and things I built to learn how something works. Each card links to the code or to the post that explains it.

infrastructure & distributed systems4

shell · kubernetes · 2021 k8s-cluster-lab An on-premise, highly available Kubernetes cluster provisioned the hard way, after Kelsey Hightower, with Linkerd and labs on debugging clusters and containers. github.com/Lumexralph/k8s-cluster-lab typescript · go · websocket · 2020★ 1 Game Pool A real-time browser game for distributed players - React and TypeScript on the front, a Go server over WebSockets behind it. github.com/Lumexralph/game-pool react · distributed systems · 2025 Byzantine Generals simulator An interactive model of the Byzantine Generals Problem, running inside the post that explains it. live on this blog go · microservice · 2021 VAT ID validator A small Go microservice that validates German VAT identification numbers. github.com/Lumexralph/vat-id-validator

systems from first principles5

c · networking · 2021 socket-programming Socket programming in C - implementing and exercising the socket APIs a network server is built on. github.com/Lumexralph/socket-programming assembly · hdl · 2022 Hack computer A 16-bit von Neumann machine built up from logic gates - ALU, RAM, CPU - that runs programs in the Hack machine language, from The Elements of Computing Systems. github.com/Lumexralph/f-hack rust · kernel · 2022 rust-os An operating system kernel in Rust - paging and a heap allocator - following Philipp Oppermann’s Writing an OS in Rust. github.com/Lumexralph/rust-os c · 2023 OSTEP projects Operating-systems projects in C, worked through from Operating Systems - Three Easy Pieces. github.com/Lumexralph/os-project-ostep go · interpreter · 2019 Chimp A small programming language and its interpreter, built in Go to learn what happens between source code and execution. github.com/Lumexralph/chimp

tools & CLIs3

go · cobra · 2020★ 2 uconv A unit-conversion CLI in the Unix spirit: uconv temperature 100 --from=c --to=k. github.com/Lumexralph/uconv go · cli · api · 2020 article-maker An article system with a CLI that fetches comments and an API that serves the articles. github.com/Lumexralph/article-maker python · cli · 2019 wset A small CLI that starts a new project with Git already initialised. github.com/Lumexralph/wset

machine learning2

python · machine learning · 2023 Iris classifier My first ML model - multi-class classification sorting irises into three species from four measurements. github.com/Lumexralph/identify-iris-flower python · jupyter · 2024★ 1 ML and deep learning labs Topics and labs from working through machine learning and deep learning. github.com/Lumexralph/ml-deep-learning-labs

more on github github.com/Lumexralph → Study notes, exercises and smaller experiments that did not make this page.