hedÖrah

acidcat

Binary analysis and reverse-engineering tool for audio file formats.

Audio File Anatomy ▪ pypi ▪ ⚑ wanted

Reverb Deep Dive

Springs, plates, Schroeder, FDNs, convolution. Wave equation to differentiable FDN, with working NumPy.

repo

Levels & Loudness

Recording, sound design & mastering reference. Waveform physics, dB scales, LUFS targets.

Spectral Audio Averaging

Inspired by Jim Campbell's Illuminated Averages.

repo

DaTaBuRn Labs - DSP & ACOUSTICS Research

Network Protocols Anatomy

Interactive byte-level anatomy of every major network protocol.

repo

ESP32 Deep Dive

Boot modes, stub loader, flash geometry, eFuse, JTAG. Boot ROM to brick recovery.

LoRa / LoRaWAN Deep Dive

Chirp spread spectrum, SX127x/SX126x registers, LoRaWAN MAC. Register-level C.

CAN Bus / Car Hacking Deep Dive

CAN frames, SocketCAN, UDS/OBD-II diagnostics, ECU firmware dumping.

IPv6 Header Breakdown

Header anatomy, addressing, NDP/SLAAC, extension headers, fragmentation. Packet-level attack lab.

repo

RouterOS / MikroTik Deep Dive

CLI, bridges, firewall/NAT isolation, switch port-mirroring, tools.

MCP Cheatsheet

Protocol spec quick reference. Primitives, transport, lifecycle, SDK patterns.

deep dive ▪ attack surface ▪ briefing

Kubernetes Cheatsheet

Interactive k8s reference with search.

yaml builder

Linux Namespaces

Overview, cheatsheet + demos.

repo

Sandboxing Deep Dive

The five primitives Linux gives you instead of a sandbox: namespaces, capabilities, seccomp-bpf, cgroups v2, Landlock. Composition, escapes, testing the negative case.

repo

eBPF Overview

Overview, cheatsheet + BCC tools.

repo

Linux Memory Management

Virtual memory, page tables, allocators. C examples.

Linux Sockets & IPC Deep Dive

The fd model, AF_UNIX, accept queues, epoll, shared memory.

Linux Network Stack Flow

Packet path through the Linux kernel network stack. Annotated flow diagram.

Python Bugs

Bug families that hit production + tool coverage map.

teardown

AI / ML Infographic Series

20 interactive explainers + cheatsheets.

OSFAMTRE.EXE

Operating system family tree. Lineage, forks, descendants.

Compression / Archive File Formats Field Guide

Benchmarks and analyzes 12 common archive and compression file formats.

cross-entropy

Windows vs. Linux disk and filesystem commands reference

Windows vs. Linux disk, partitions, and filesystems reference.

Bookbinding Glossary

Structures, sewing, covering, adhesives, conservation. Hand binding to edition work.

partinfo

Datasheet-verified electronic component pinouts, specs, and ASCII diagrams in your terminal.

pypi ▪ repo

wrapster

Secure MCP command gateway for LLMs. GTFObins-derived guardrail signatures.

repo ▪ mcp ref

Noggin2

Obsidian + Claude second-brain system. Tag-driven LLM processing, daily capture.

repo ▪ cheatsheet

Plex / Spotify Metadata MCP Servers

Search, metadata, poster/art retrieval, library exports. Read-only by design.

plex ▪ spotify

pagescope

Chrome DevTools in your terminal.

pypi ▪ repo

spectrum_tui

RTL-SDR spectrum scanner TUI.

repo

TunnelMap

Subway Tunnel Mapping / Underground Cartography Tool.

repo

GIF Archaeology & Editor

Browse, dissect, and re-encode GIFs. Frame-level inspection.

ChromaScope

Art Analysis Laboratory. Extract palettes, analyze geometry, and more.

Moonboard

Lightweight moodboard for local use.

ansigrivt

ANSI/ASCII art viewer with interactive physics effects.

repo

sort500

23 sorting algorithms written from scratch in C11. Includes a benchmark and race tool.

repo

vuln-lab-C

Minimal, self-contained C programs demonstrating common memory and logic vulnerabilities.

repo

BFF Primordial Soup v2

Spontaneous self-replicator emergence in a Brainfuck-derived computational substrate.

BLACK MATH

⊕ ⊖ ⊗ ⊘ ⊙ ⊚ ⊛ ⊜ ⊝ ⊞ ⊟ ⊠ ⊡ ⊢ ⊣ ⊤ ⊥ ⊦ ⊧ ⊨ ⊩ ⊪ ⊫ ⊬

CAMOJACK

Camouflage pattern generator & editor.

LABL-DNGN ( labeldungeon.com )

Dungeon tile geomorphs for 4x6" & 150x100mm shipping label printers.

Kill ENGN

Modular mech and heavy-vehicle rules for CY_BORG.

itch

Fate Rally

Simulated death-race league with pro-wrestling storylines and collaborative worldbuilding.

wiki

Skate Glossary Under Construction

WIP.