Projects

39 of 39 projects

pgit

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

Go

pg-xpatch

PostgreSQL Table Access Method for delta-compressed versioned data

C PLpgSQL Shell
1

oseifert-data

Data generator that fetches GitHub repos, GitLab/Gitea projects, and dev.to articles to create portfolio JSON exports.

TypeScript

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

top-issues

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

TypeScript
3

mojido

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

TypeScript Svelte Kotlin

xpatch-webdemo

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

Svelte TypeScript CSS

xpatch

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

Rust TypeScript Nunjucks
10

AxonotesCore

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

Rust
11

xpatch_demo_editor

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

Svelte Rust TypeScript
1

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
2

cybernote-v2

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

Svelte TypeScript JavaScript

charmer

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

Go Shell
1

bfscript

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

Python
5

nvim

LazyVim starter template with modern Neovim configuration and plugin management.

Lua

axogen

TypeScript-native configuration and task management

TypeScript CSS MDX
21

discountdb-api

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

Go
17

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
788

pdfy

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

Svelte TypeScript CSS

tfutils-go

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

Go
1

tfUtils

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

Python Jinja Batchfile
3

brainfuck_transpiler

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

Python

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
9

athena_v2

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

Svelte TypeScript CSS
4

EasyConsole

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

C#
1

calcom-python-v2

calcom v2 api python package generated by openapi

Python Shell
1

excalidraw_desktop

Excalidraw for Desktop made with Tauri

TypeScript SCSS MDX
1

bot_brew

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

TypeScript

PixelShaders

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

Svelte TypeScript WGSL

athena

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

Svelte TypeScript CSS
3

cybernote

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

Svelte TypeScript JavaScript

interflow

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

JavaScript TypeScript

capitaldotcom

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

TypeScript JavaScript
2

create-dc-client

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

JavaScript
3

js_is_stupid

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

JavaScript

StarWarsAscii-Blinkenlight

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

Batchfile

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 39 open-source projects covering embedded systems, full-stack web applications, developer tools, and more.

  • Syrup

    Role: Maintainer

    Syrup, a Honey alternative

    Languages: TypeScript, JavaScript, CSS, Swift, HTML

    Topics: coupons, extension, honey, shopping, syrup

    Stars: 788

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

    View project details View on GitHub
  • axogen

    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: 21

    Created: 2025-07-16T16:07:18Z, Last updated: 2025-08-30T16:58:36Z

    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: 17

    Created: 2025-01-03T17:43:29Z, Last updated: 2025-08-05T22:18:54Z

    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: 11

    Created: 2025-04-27T17:54:51Z, Last updated: 2026-01-11T22:32:38Z

    View project details View on GitHub
  • xpatch

    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: 10

    Created: 2025-12-07T21:57:39Z, Last updated: 2026-01-12T23:10:33Z

    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: 9

    Created: 2025-01-02T19:04:09Z, Last updated: 2025-02-25T11:40:25Z

    View project details View on GitHub
  • bfscript

    Role: Creator

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

    Languages: Python

    Stars: 5

    Created: 2025-04-01T14:14:04Z, Last updated: 2025-10-16T21:55:42Z

    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: 4

    Created: 2023-10-27T17:06:04Z, Last updated: 2025-02-24T03:25:37Z

    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: 3

    Created: 2025-05-05T12:20:20Z, Last updated: 2026-01-24T00:02:19Z

    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, Jinja, Batchfile, CMake

    Stars: 3

    Created: 2024-09-02T12:35:46Z, Last updated: 2025-04-21T20:17:57Z

    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: Svelte, TypeScript, CSS, JavaScript, HTML

    Stars: 3

    Created: 2023-06-29T15:40:00Z, Last updated: 2023-08-09T10:43:12Z

    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: 3

    Created: 2023-01-05T22:06:55Z, Last updated: 2023-01-07T01:10:20Z

    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: 2

    Created: 2025-12-04T19:27:19Z, Last updated: 2025-12-12T15:20:46Z

    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: 2023-02-16T11:53:47Z

    View project details View on GitHub
  • pg-xpatch

    Role: Creator

    PostgreSQL Table Access Method for delta-compressed versioned data

    Languages: C, PLpgSQL, Shell, Makefile, Dockerfile

    Stars: 1

    Created: 2026-01-19T18:52:12Z, Last updated: 2026-01-27T18:30:17Z

    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: 2025-12-28T19:56:04Z

    View project details View on GitHub
  • charmer

    Role: Creator

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

    Languages: Go, Shell

    Stars: 1

    Created: 2025-02-15T22:32:01Z, Last updated: 2025-10-23T16:49:19Z

    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: 1

    Created: 2025-02-16T17:19:07Z, Last updated: 2025-04-22T06:44:37Z

    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: 2025-02-11T15:29:50Z

    View project details View on GitHub
  • calcom-python-v2

    Role: Creator

    calcom v2 api python package generated by openapi

    Languages: Python, Shell

    Stars: 1

    Created: 2024-10-11T19:33:35Z, Last updated: 2024-10-11T19:50:37Z

    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: 1

    Created: 2024-02-01T14:56:15Z, Last updated: 2024-02-01T14:59:53Z

    View project details View on GitHub
  • pgit

    Role: Creator

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

    Languages: Go

    Stars: 0

    Created: 2026-01-27T23:13:44Z, Last updated: 2026-01-28T00:14:52Z

    View project details View on GitHub
  • oseifert-data

    Role: Creator

    Data generator that fetches GitHub repos, GitLab/Gitea projects, and dev.to articles to create portfolio JSON exports.

    Languages: TypeScript

    Stars: 0

    Created: 2025-03-11T20:28:36Z, Last updated: 2026-01-27T00:28:04Z

    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: 2026-01-25T11:00:03Z

    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: 2026-01-25T11:00:02Z

    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: 2026-01-15T15:21:54Z

    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: 2026-01-13T10:14:07Z

    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: 2025-10-31T10:17:18Z

    View project details View on GitHub
  • nvim

    Role: Creator

    LazyVim starter template with modern Neovim configuration and plugin management.

    Languages: Lua

    Stars: 0

    Created: 2025-09-25T22:35:23Z, Last updated: 2025-09-25T22:38:02Z

    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: 2025-05-26T05:32:28Z

    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: 2025-03-25T13:47:03Z

    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: 2023-12-07T19:56:06Z

    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: 2023-10-19T13:13:00Z

    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, TypeScript, JavaScript, HTML, CSS

    Stars: 0

    Created: 2023-03-11T00:26:00Z, Last updated: 2023-03-18T10:06:05Z

    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: 2023-02-21T20:34:49Z

    View project details View on GitHub
  • js_is_stupid

    Role: Creator

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

    Languages: JavaScript

    Stars: 0

    Created: 2023-01-04T17:21:21Z, Last updated: 2023-01-04T17:39:52Z

    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: 2022-09-25T10:49:16Z

    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