K-Engine: handmade software, native apps, games and free browser tools
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> Handmade software for handmade problems_
// k-engine
A custom C++/OpenGL game engine where the player swaps between a top-down RPG view and a Doom-style first-person view at runtime. The mode-swap is a gameplay mechanic — bosses are designed to favor one mode over the other: bullet-hell readable from above, melee readable in first-person.
// k-os chat
A self-hosted Discord alternative for small friend groups. Native desktop client with real-time text chat, voice chat, video streaming, inline media, friends & DMs, end-to-end encrypted channels, role-based permissions, and real moderation tools for whoever runs the server. Your server. Your rules. Your voice.
Built in C++20 with a custom binary protocol — no Electron, no web browser, no cloud dependencies. Spin up the server on a VPS or your own box; everyone runs the native client.
// RepTek
A strength-training workout tracker for serious lifters. Pick a program, tap cells to log sets, and the app's progressive-overload engine increments your working weight the moment you hit every rep. No social feed, no push spam, no upsells — just your numbers, on your phone, syncing through iCloud.
// filex
filex sends files directly between two computers, encrypted end to end, with no size limit and nothing stored on a server. A tiny relay only brokers the initial handshake — the bytes flow peer-to-peer.
// VidConverter
A no-nonsense desktop media converter that wraps FFmpeg in a friendly GUI and a scriptable CLI. Point it at a video or audio file, pick a format and a quality profile, hit convert. Zero Python dependencies — it rides entirely on the standard library and whatever FFmpeg you already have installed. MIT licensed, source on GitHub.
visit → · download → · source → · details →
// k-rosspointSender
k-rosspointSender takes a web article, a Wikipedia page, pasted text, or a whole pack of linked Wikipedia articles, cleans it down to the reading, builds an EPUB tuned for a small e-ink screen, and sends it straight to a CrossPoint reader over Wi-Fi or Bluetooth. No account, no backend, nothing leaves your machine except the article fetch and the transfer to your reader.
visit → · download → · source → · details →
// weather desktop
weather desktop is a small native weather app that lives in your system tray — current conditions, a minute-by-minute rain nowcast, an hourly and seven-day forecast with pixel-art icons, air quality, an in-app weather radar, and weather alerts that actually know when to leave you alone.
// misc
Small single-file tools that don't warrant a project of their own. Each is one HTML file that runs in the browser with no install and no server, so nothing you open leaves your device. All MIT-licensed, with the license inside each file; the full source is here.
Twenty-three so far: image steganography, a focus timer, a document scanner, file encryption, an audio trimmer, a pamphlet layout tool, a photo metadata cleaner, a file converter, a QR generator, a password generator, a screenshot redactor, a text-and-document compare tool, a visual image compare, a color palette and contrast tool, a link cleaner, a signature pad, printable paper, a puzzle generator, a Word editor, an Excel editor, a PDF fill-and-sign tool, an invoice, quote, and receipt maker, and a grid blueprint drawer. There's also a Workbench that runs them all in one page — a keyboard launcher with tabs, for when you're reaching for several at once.