Projects

42 of 42 projects

pgit

Git-like version control CLI backed by PostgreSQL with pg-xpatch delta compression

Go
195

pg-xpatch

PostgreSQL Table Access Method for delta-compressed versioned data

Python PLpgSQL C
45

xpatch

High-performance delta compression library with automatic algorithm selection for Rust, Python, Node.js, C/C++, and WASM.

Rust TypeScript Nunjucks
58

axogen

TypeScript-native configuration and task management

TypeScript CSS MDX
22

charmer

A Go package that automatically generates beautiful terminal UIs from annotated functions using Charm libraries.

Go

bfscript

Compile C-like code directly to Brainfuck with a Python compiler featuring 32-bit cells and high-level abstractions.

Python
4

glife

Conway's Game of Life in the terminal — infinite grid, Braille rendering, sub-cell mouse drawing. Written in Go.

Go

quick-cards

Export Quizlet flashcards and vocab lists — web app + Chrome extension

TypeScript Svelte HTML
1

ankipack

Generate Anki .apkg decks with full FSRS support. Works in browsers, Node.js, and Bun.

TypeScript JavaScript
2

slopbook

$5k–$10k in credits up for grabs for first 1k stargazers. Open-source Moltbook clone on SpacetimeDB. Slop only.

TypeScript Svelte JavaScript
22

tango

It takes two to learn vocabulary. Japanese vocabulary Anki deck with TTS audio and example sentences.

Python

discountdb-api

Open-source Go backend API for DiscountDB - a coupon and discount database with PostgreSQL and Redis.

Go
16

gdelta

Fast delta compression algorithm for similar data chunks in pure Rust. Achieves 496 MB/s encoding and 4.4 GB/s decoding with competitive compression ratios.

Rust Shell
4

excalidraw_desktop

Excalidraw for Desktop made with Tauri

TypeScript SCSS MDX

AxonotesCore

Core monorepo for Axonotes—all-in-one academic suite with Tauri desktop app and SpaceTimeDB Rust backend for real-time collaboration.

Rust
15

xpatch-webdemo

Interactive web demo comparing xpatch delta compression performance against xdelta3, bsdiff, and fossil-delta algorithms.

Svelte TypeScript CSS

mojido

文字道 - Japanese reading practice app. See Japanese, type romaji from memory.

TypeScript Svelte Kotlin

xpatch_demo_editor

Lightning-fast markdown editor demo powered by xpatch delta compression. Scrub through document history with zero lag.

Svelte Rust TypeScript
1

pdfy

Convert your code projects into clean, searchable text-based PDFs with client-side syntax highlighting—no server uploads needed.

Svelte TypeScript CSS

top-issues

GitHub Action that automatically ranks open feature request issues by reactions and generates a ranked Markdown report for your repository.

TypeScript
2

brainfuck_transpiler

A human-readable transpiler that converts C-like syntax to Brainfuck code. Features variables, control flow, and I/O operations.

Python

tfutils-go

A powerful Go rewrite of TFUtils for efficient project management with high performance, easy distribution, and enhanced reliability.

Go

discountdb

A community-driven open-source database for discount coupons and deals. Freely available to help everyone save money through accessible open data.

Svelte TypeScript CSS
8

calcom-python-v2

calcom v2 api python package generated by openapi

Python Shell

tfUtils

Efficiently manage TFBern student projects with a user-friendly tool designed for beginners and advanced users alike.

Python Batchfile CMake
2

bot_brew

A lightweight TypeScript npm package for building Discord bots with slash commands and modular event handling.

TypeScript

interflow

A Node.js/TypeScript package for advanced console UI control with logging, colored output, input handling, key events, and progress bars.

JavaScript TypeScript

create-dc-client

This is package to create a default discord-bot-client.

JavaScript
2

js_is_stupid

Convert JavaScript code into unreadable obfuscated code using only ()[]{}=>+!/\ characters.

JavaScript
1

StarWarsAscii-Blinkenlight

This is a little cmd program that starts "towel.blinkenlights.nl" Star Wars version in Fullscreen.

Batchfile

EasyConsole

A .NET library for beautiful and interactive console applications with colorful UI components, forms, menus, and secure input handling.

C#
1

lwjgl_physics_engine_2.0

3D game engine with OpenGL, GLSL shaders, and Bullet Physics in Kotlin. Built in January 2022.

Kotlin GLSL

ch.imgajeed.PhysicsEngine

3D wireframe rendering engine from scratch in Kotlin using Java Swing. My first 3D graphics project from March 2021.

Kotlin

PixelShaders

Custom pixel shader implementations and effects for visual rendering and graphics processing.

Svelte TypeScript WGSL

athena_v2

Open-source web platform for interactive learning with Cards, Slides, Quiz, Pages, and Classes for enhanced educational experiences.

Svelte TypeScript CSS
3

athena

Athena is a webapp for teachers and students to create tasks, do quizs and more in the near future.

CSS JavaScript TypeScript
2

cybernote-v2

Free, open-source note-taking app with real-time sync across devices. Built with SvelteKit, TailwindCSS, and Supabase.

Svelte TypeScript JavaScript

cybernote

A Miro-like collaborative infinite canvas app for visual note-taking and brainstorming. Built with SvelteKit.

Svelte JavaScript TypeScript

capitaldotcom

TypeScript package for accessing the Capital.com API with ease.

TypeScript JavaScript
2

AxonotesHomepage

Official homepage and information hub for Axonotes, an all-in-one academic suite for students and educators. Built with SvelteKit.

4

Syrup

Maintainer

Syrup, a Honey alternative

TypeScript JavaScript CSS
780

PyAscii-Art

Convert images to ASCII art with Python. Simple library for transforming images into text-based ASCII representations.

Python

All Projects by Oliver Seifert

This portfolio showcases 42 open-source projects covering embedded systems, full-stack web applications, developer tools, and more.

Pinned Projects (Featured)

  • pgit (Pinned)

    Role: Creator

    Git-like version control CLI backed by PostgreSQL with pg-xpatch delta compression

    Languages: Go

    Stars: 195

    Created: 2026-01-27T23:13:44Z, Last updated: 2026-04-10T00:09:25Z

    View project details View on GitHub

  • xpatch (Pinned)

    Role: Creator

    High-performance delta compression library with automatic algorithm selection for Rust, Python, Node.js, C/C++, and WASM.

    Languages: Rust, TypeScript, Nunjucks, JavaScript, HTML, Python, C, Makefile

    Stars: 58

    Created: 2025-12-07T21:57:39Z, Last updated: 2026-02-22T16:36:57Z

    View project details View on GitHub

  • pg-xpatch (Pinned)

    Role: Creator

    PostgreSQL Table Access Method for delta-compressed versioned data

    Languages: Python, PLpgSQL, C, Shell, Makefile, Dockerfile

    Stars: 45

    Created: 2026-01-19T18:52:12Z, Last updated: 2026-02-28T22:29:03Z

    View project details View on GitHub

  • axogen (Pinned)

    Role: Creator

    TypeScript-native configuration and task management

    Languages: TypeScript, CSS, MDX, HTML

    Topics: axogen, cli-tools, config-management, configuration, developer-tools, environment-variables, type-safety, typescript, typescript-native, zod-validation

    Stars: 22

    Created: 2025-07-16T16:07:18Z, Last updated: 2026-02-06T16:48:45Z

    View project details View on GitHub

  • bfscript (Pinned)

    Role: Creator

    Compile C-like code directly to Brainfuck with a Python compiler featuring 32-bit cells and high-level abstractions.

    Languages: Python

    Stars: 4

    Created: 2025-04-01T14:14:04Z, Last updated: 2026-02-06T16:48:26Z

    View project details View on GitHub

  • charmer (Pinned)

    Role: Creator

    A Go package that automatically generates beautiful terminal UIs from annotated functions using Charm libraries.

    Languages: Go

    Stars: 0

    Created: 2025-02-15T22:32:01Z, Last updated: 2026-02-06T16:48:41Z

    View project details View on GitHub

All Projects

  • Syrup

    Role: Maintainer

    Syrup, a Honey alternative

    Languages: TypeScript, JavaScript, CSS, Swift, HTML

    Topics: coupons, extension, honey, shopping, syrup

    Stars: 780

    Created: 2024-12-27T13:16:51Z, Last updated: 2025-06-09T15:11:44Z

    View project details View on GitHub

  • pgit (Pinned)

    Role: Creator

    Git-like version control CLI backed by PostgreSQL with pg-xpatch delta compression

    Languages: Go

    Stars: 195

    Created: 2026-01-27T23:13:44Z, Last updated: 2026-04-10T00:09:25Z

    View project details View on GitHub

  • xpatch (Pinned)

    Role: Creator

    High-performance delta compression library with automatic algorithm selection for Rust, Python, Node.js, C/C++, and WASM.

    Languages: Rust, TypeScript, Nunjucks, JavaScript, HTML, Python, C, Makefile

    Stars: 58

    Created: 2025-12-07T21:57:39Z, Last updated: 2026-02-22T16:36:57Z

    View project details View on GitHub

  • pg-xpatch (Pinned)

    Role: Creator

    PostgreSQL Table Access Method for delta-compressed versioned data

    Languages: Python, PLpgSQL, C, Shell, Makefile, Dockerfile

    Stars: 45

    Created: 2026-01-19T18:52:12Z, Last updated: 2026-02-28T22:29:03Z

    View project details View on GitHub

  • slopbook

    Role: Creator

    $5k–$10k in credits up for grabs for first 1k stargazers. Open-source Moltbook clone on SpacetimeDB. Slop only.

    Languages: TypeScript, Svelte, JavaScript, CSS, HTML

    Stars: 22

    Created: 2026-03-11T07:39:25Z, Last updated: 2026-03-12T15:12:51Z

    View project details View on GitHub

  • axogen (Pinned)

    Role: Creator

    TypeScript-native configuration and task management

    Languages: TypeScript, CSS, MDX, HTML

    Topics: axogen, cli-tools, config-management, configuration, developer-tools, environment-variables, type-safety, typescript, typescript-native, zod-validation

    Stars: 22

    Created: 2025-07-16T16:07:18Z, Last updated: 2026-02-06T16:48:45Z

    View project details View on GitHub

  • discountdb-api

    Role: Creator

    Open-source Go backend API for DiscountDB - a coupon and discount database with PostgreSQL and Redis.

    Languages: Go

    Stars: 16

    Created: 2025-01-03T17:43:29Z, Last updated: 2026-02-25T08:05:11Z

    View project details View on GitHub

  • AxonotesCore

    Role: Creator

    Core monorepo for Axonotes—all-in-one academic suite with Tauri desktop app and SpaceTimeDB Rust backend for real-time collaboration.

    Languages: Rust

    Stars: 15

    Created: 2025-04-27T17:54:51Z, Last updated: 2026-02-11T13:54:22Z

    View project details View on GitHub

  • discountdb

    Role: Creator

    A community-driven open-source database for discount coupons and deals. Freely available to help everyone save money through accessible open data.

    Languages: Svelte, TypeScript, CSS, JavaScript, HTML

    Stars: 8

    Created: 2025-01-02T19:04:09Z, Last updated: 2026-02-06T16:48:13Z

    View project details View on GitHub

  • gdelta

    Role: Creator

    Fast delta compression algorithm for similar data chunks in pure Rust. Achieves 496 MB/s encoding and 4.4 GB/s decoding with competitive compression ratios.

    Languages: Rust, Shell

    Stars: 4

    Created: 2025-12-04T19:27:19Z, Last updated: 2026-02-12T10:18:28Z

    View project details View on GitHub

  • bfscript (Pinned)

    Role: Creator

    Compile C-like code directly to Brainfuck with a Python compiler featuring 32-bit cells and high-level abstractions.

    Languages: Python

    Stars: 4

    Created: 2025-04-01T14:14:04Z, Last updated: 2026-02-06T16:48:26Z

    View project details View on GitHub

  • AxonotesHomepage

    Role: Creator

    Official homepage and information hub for Axonotes, an all-in-one academic suite for students and educators. Built with SvelteKit.

    Languages:

    Stars: 4

    Created: 2025-05-17T11:50:59Z, Last updated: 2025-06-30T20:20:41Z

    View project details View on GitHub

  • athena_v2

    Role: Creator

    Open-source web platform for interactive learning with Cards, Slides, Quiz, Pages, and Classes for enhanced educational experiences.

    Languages: Svelte, TypeScript, CSS, JavaScript, HTML

    Stars: 3

    Created: 2023-10-27T17:06:04Z, Last updated: 2026-02-06T16:31:16Z

    View project details View on GitHub

  • ankipack

    Role: Creator

    Generate Anki .apkg decks with full FSRS support. Works in browsers, Node.js, and Bun.

    Languages: TypeScript, JavaScript

    Stars: 2

    Created: 2026-04-19T15:16:35Z, Last updated: 2026-04-19T15:37:27Z

    View project details View on GitHub

  • top-issues

    Role: Creator

    GitHub Action that automatically ranks open feature request issues by reactions and generates a ranked Markdown report for your repository.

    Languages: TypeScript

    Stars: 2

    Created: 2025-05-05T12:20:20Z, Last updated: 2026-02-06T16:48:28Z

    View project details View on GitHub

  • tfUtils

    Role: Creator

    Efficiently manage TFBern student projects with a user-friendly tool designed for beginners and advanced users alike.

    Languages: Python, Batchfile, CMake

    Stars: 2

    Created: 2024-09-02T12:35:46Z, Last updated: 2026-02-06T16:48:06Z

    View project details View on GitHub

  • create-dc-client

    Role: Creator

    This is package to create a default discord-bot-client.

    Languages: JavaScript

    Topics: discord, discord-bot, discord-bot-template, discord-bot-v14, discord-js, discord-template, discord-v14

    Stars: 2

    Created: 2023-01-05T22:06:55Z, Last updated: 2026-02-06T16:47:53Z

    View project details View on GitHub

  • athena

    Role: Creator

    Athena is a webapp for teachers and students to create tasks, do quizs and more in the near future.

    Languages: CSS, JavaScript, TypeScript, Svelte, HTML

    Stars: 2

    Created: 2023-06-29T15:40:00Z, Last updated: 2026-02-06T16:31:10Z

    View project details View on GitHub

  • capitaldotcom

    Role: Creator

    TypeScript package for accessing the Capital.com API with ease.

    Languages: TypeScript, JavaScript

    Stars: 2

    Created: 2023-02-16T11:40:16Z, Last updated: 2026-02-06T16:31:03Z

    View project details View on GitHub

  • quick-cards

    Role: Creator

    Export Quizlet flashcards and vocab lists — web app + Chrome extension

    Languages: TypeScript, Svelte, HTML, CSS, JavaScript

    Stars: 1

    Created: 2026-03-02T19:19:58Z, Last updated: 2026-04-26T20:27:33Z

    View project details View on GitHub

  • xpatch_demo_editor

    Role: Creator

    Lightning-fast markdown editor demo powered by xpatch delta compression. Scrub through document history with zero lag.

    Languages: Svelte, Rust, TypeScript, CSS, JavaScript, HTML

    Stars: 1

    Created: 2025-12-12T21:51:59Z, Last updated: 2026-02-06T16:48:35Z

    View project details View on GitHub

  • js_is_stupid

    Role: Creator

    Convert JavaScript code into unreadable obfuscated code using only ()[]{}=>+!/\ characters.

    Languages: JavaScript

    Stars: 1

    Created: 2023-01-04T17:21:21Z, Last updated: 2026-02-06T16:47:49Z

    View project details View on GitHub

  • EasyConsole

    Role: Creator

    A .NET library for beautiful and interactive console applications with colorful UI components, forms, menus, and secure input handling.

    Languages: C#

    Stars: 1

    Created: 2022-07-21T18:02:56Z, Last updated: 2026-02-06T16:47:38Z

    View project details View on GitHub

  • glife

    Role: Creator

    Conway's Game of Life in the terminal — infinite grid, Braille rendering, sub-cell mouse drawing. Written in Go.

    Languages: Go

    Stars: 0

    Created: 2026-04-21T08:49:56Z, Last updated: 2026-04-27T19:56:42Z

    View project details View on GitHub

  • tango

    Role: Creator

    It takes two to learn vocabulary. Japanese vocabulary Anki deck with TTS audio and example sentences.

    Languages: Python

    Stars: 0

    Created: 2026-03-08T21:55:46Z, Last updated: 2026-03-10T15:12:58Z

    View project details View on GitHub

  • excalidraw_desktop

    Role: Creator

    Excalidraw for Desktop made with Tauri

    Languages: TypeScript, SCSS, MDX, JavaScript, HTML, CSS, Dockerfile, Rust, Shell

    Stars: 0

    Created: 2024-02-01T14:56:15Z, Last updated: 2026-02-11T14:57:32Z

    View project details View on GitHub

  • charmer (Pinned)

    Role: Creator

    A Go package that automatically generates beautiful terminal UIs from annotated functions using Charm libraries.

    Languages: Go

    Stars: 0

    Created: 2025-02-15T22:32:01Z, Last updated: 2026-02-06T16:48:41Z

    View project details View on GitHub

  • xpatch-webdemo

    Role: Creator

    Interactive web demo comparing xpatch delta compression performance against xdelta3, bsdiff, and fossil-delta algorithms.

    Languages: Svelte, TypeScript, CSS, JavaScript, HTML

    Stars: 0

    Created: 2026-01-12T22:59:17Z, Last updated: 2026-02-06T16:48:38Z

    View project details View on GitHub

  • mojido

    Role: Creator

    文字道 - Japanese reading practice app. See Japanese, type romaji from memory.

    Languages: TypeScript, Svelte, Kotlin, Rust, CSS, JavaScript, HTML

    Stars: 0

    Created: 2026-01-12T22:04:33Z, Last updated: 2026-02-06T16:48:36Z

    View project details View on GitHub

  • pdfy

    Role: Creator

    Convert your code projects into clean, searchable text-based PDFs with client-side syntax highlighting—no server uploads needed.

    Languages: Svelte, TypeScript, CSS, JavaScript, HTML

    Stars: 0

    Created: 2025-05-24T20:59:30Z, Last updated: 2026-02-06T16:48:29Z

    View project details View on GitHub

  • brainfuck_transpiler

    Role: Creator

    A human-readable transpiler that converts C-like syntax to Brainfuck code. Features variables, control flow, and I/O operations.

    Languages: Python

    Stars: 0

    Created: 2025-03-24T21:11:51Z, Last updated: 2026-02-06T16:48:22Z

    View project details View on GitHub

  • tfutils-go

    Role: Creator

    A powerful Go rewrite of TFUtils for efficient project management with high performance, easy distribution, and enhanced reliability.

    Languages: Go

    Stars: 0

    Created: 2025-02-16T17:19:07Z, Last updated: 2026-02-06T16:48:21Z

    View project details View on GitHub

  • calcom-python-v2

    Role: Creator

    calcom v2 api python package generated by openapi

    Languages: Python, Shell

    Stars: 0

    Created: 2024-10-11T19:33:35Z, Last updated: 2026-02-06T16:48:08Z

    View project details View on GitHub

  • bot_brew

    Role: Creator

    A lightweight TypeScript npm package for building Discord bots with slash commands and modular event handling.

    Languages: TypeScript

    Stars: 0

    Created: 2023-12-05T06:55:27Z, Last updated: 2026-02-06T16:48:00Z

    View project details View on GitHub

  • interflow

    Role: Creator

    A Node.js/TypeScript package for advanced console UI control with logging, colored output, input handling, key events, and progress bars.

    Languages: JavaScript, TypeScript

    Stars: 0

    Created: 2023-02-19T13:48:41Z, Last updated: 2026-02-06T16:47:57Z

    View project details View on GitHub

  • StarWarsAscii-Blinkenlight

    Role: Creator

    This is a little cmd program that starts "towel.blinkenlights.nl" Star Wars version in Fullscreen.

    Languages: Batchfile

    Stars: 0

    Created: 2022-09-25T10:30:31Z, Last updated: 2026-02-06T16:47:48Z

    View project details View on GitHub

  • lwjgl_physics_engine_2.0

    Role: Creator

    3D game engine with OpenGL, GLSL shaders, and Bullet Physics in Kotlin. Built in January 2022.

    Languages: Kotlin, GLSL

    Stars: 0

    Created: 2022-01-24T16:18:30Z, Last updated: 2026-02-06T16:47:35Z

    View project details View on GitHub

  • ch.imgajeed.PhysicsEngine

    Role: Creator

    3D wireframe rendering engine from scratch in Kotlin using Java Swing. My first 3D graphics project from March 2021.

    Languages: Kotlin

    Stars: 0

    Created: 2021-03-03T17:46:04Z, Last updated: 2026-02-06T16:47:32Z

    View project details View on GitHub

  • PixelShaders

    Role: Creator

    Custom pixel shader implementations and effects for visual rendering and graphics processing.

    Languages: Svelte, TypeScript, WGSL, JavaScript, HTML, CSS

    Stars: 0

    Created: 2023-10-19T13:12:38Z, Last updated: 2026-02-06T16:31:19Z

    View project details View on GitHub

  • cybernote-v2

    Role: Creator

    Free, open-source note-taking app with real-time sync across devices. Built with SvelteKit, TailwindCSS, and Supabase.

    Languages: Svelte, TypeScript, JavaScript, HTML, CSS

    Stars: 0

    Created: 2023-03-20T17:34:40Z, Last updated: 2026-02-06T16:31:07Z

    View project details View on GitHub

  • cybernote

    Role: Creator

    A Miro-like collaborative infinite canvas app for visual note-taking and brainstorming. Built with SvelteKit.

    Languages: Svelte, JavaScript, TypeScript, HTML, CSS

    Stars: 0

    Created: 2023-03-11T00:26:00Z, Last updated: 2026-02-06T16:31:05Z

    View project details View on GitHub

  • PyAscii-Art

    Role: Creator

    Convert images to ASCII art with Python. Simple library for transforming images into text-based ASCII representations.

    Languages: Python

    Stars: 0

    Created: 2021-12-11T15:21:00Z, Last updated: 2021-12-11T16:29:25Z

    View project details View on GitHub