Skip to content
View S-k404's full-sized avatar

Achievements

Achievement: Quickdraw

Achievements

Achievement: Quickdraw

Block or report S-k404

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
S-k404/README.md

Hi, I'm SK: I build local-first tools: software, firmware and PCBs that run on your own machine and keep your data on your own disk.

Hi, I'm SK

I build local-first tools: things that run on your own machine, keep your data on your own disk, and don't phone home unless you tell them to. Most of what's below started as "I wanted this and it didn't exist": a converter, an exporter, a visualizer, a library fixer, and a few boards.

Index

Index of sheets: Local AI and audio, Files and data, Hardware, Apps and terminal

Projects

Each repository is a numbered sheet (U1, U2, ...) of the same datasheet as my personal site.

Local AI and audio

Sheet Project What it does
U1 kokoro-audiobook-studio Turns textbooks and technical PDFs into chaptered M4B audiobooks, fully local on Apple Silicon (Kokoro TTS, Metal GPU).
U7 odysseus-speech-tools Local speech engine (Kokoro-82M TTS + Faster-Whisper STT), document narrators and audio pipelines for the Odysseus workspace.
U8 odysseus-image-tools MCP server and CLI for local image inpainting and region detection, for Odysseus.
U6 odysseus-notion-skill A read-only Notion tool/skill for the Odysseus local-model agent: search and read Notion live, nothing cached to disk.

Files and data

Sheet Project What it does
U2 notion-better-export High-fidelity Notion workspace exporter. Preserves folder hierarchy, Obsidian Bases and linked CSV databases instead of Notion's flat default export.
U4 better-vert Local-first universal file converter: 250+ formats via FFmpeg/ImageMagick, plus anything-to-Markdown via MarkItDown, OCR and Poppler. Web UI + CLI in one Docker container.
U3 music-tools A CLI (mt) for curating a local music library: album art repair, artist art and lyrics, duplicate detection, misidentified tag fixes, library stats.
U9 grab Fast parallel batch downloader for video streams, images and files (yt-dlp + ffmpeg) with Web GUI, CLI and browser extension.

Hardware

Sheet Project What it does
U16 heater-driver-v4 12 V / 100 W through-hole PCB heater driver with over-current and over-temperature protection and an assembly placement guide.
U17 solder-reflow-pad KiCad solder reflow hotplate pad with a custom artistic silkscreen layer.
U18 pi5-homelab-rack Modular 3D-printed 9U rack ecosystem and design scripts for a Raspberry Pi 5.
U15 esp32-sensor-probe ESP32 and Arduino environmental sensor probes with ST7789 IPS and OLED support, in C++ and MicroPython.

Apps and terminal

Sheet Project What it does
U10 aether-7 Cyberpunk telemetry HUD and kiosk monitor for Raspberry Pi 5 + 7-inch displays, with Hailo-8 NPU and Apple Silicon metrics.
U11 flight-live Native iOS & macOS flight tracking with Dynamic Island, Live Activities and Notion flight import.
U12 study-copilot Native macOS menu bar study copilot with screen-region OCR, an explainer engine and a local offline practice sandbox.
U5 music-visualiser Two visualisers, one repo: a macOS terminal app with real-time ASCII/pixel rendering, and ESP32 + OLED firmware showing a live spectrum over Bluetooth.
U13 fetch3d 3D rotating Apple-logo system fetch for macOS, in zero-dependency pure C using Mach and sysctl APIs.
U14 ascii-dino Chrome Dino endless runner in the terminal, written in Python curses and containerized with Docker.

Notes

  • Everything above is local-first by design: no required cloud dependency, no telemetry, data stays on disk unless the tool's whole point is to export it somewhere you chose.
  • Each repo's README has full setup and usage instructions. The tables above are just a map.

Pinned Loading

  1. kokoro-audiobook-studio kokoro-audiobook-studio Public

    Turn textbooks and technical PDFs into chaptered M4B audiobooks locally on Apple Silicon (Kokoro TTS, Metal GPU)

    Python 1

  2. notion-better-export notion-better-export Public

    High-fidelity Notion workspace exporter preserving folder hierarchy, Obsidian Bases, and linked CSV databases

    Python 1

  3. music-tools music-tools Public

    A read-first CLI toolkit (mt) for cleaning up a local music library: missing album/artist art, lyrics, misidentified tags, and duplicates.

    Python

  4. music-visualiser music-visualiser Public

    Two music visualizers: a macOS terminal app with real-time ASCII/pixel album art and spectrum synced to playback, plus ESP32 + OLED Bluetooth A2DP firmware.

    Python

  5. better-vert better-vert Public

    Local-first universal file converter: 250+ formats via FFmpeg/ImageMagick plus anything-to-Markdown via Microsoft MarkItDown, OCR and Poppler. Web UI + interactive CLI, all in one Docker container.

    Python

  6. odysseus-notion-skill odysseus-notion-skill Public

    Read-only Notion MCP tool and skill for the Odysseus local-model agent: search and read Notion live, with no writes and nothing cached to disk.

    Python