🌐   londopy.github.io

the full, filterable project index — grouped by domain, with per-project writeups — plus a live feed of my open-source pull requests

I build tools for climbing, medicine, Windows internals, and myself. California kid, freshman in college, writing code between surf sessions and rock climbs. Most of what's here started because something annoyed me on a trail or in the field — a rope question, a pre-hospital protocol, a screen-capture API doing something I didn't ask for — so I built the tool.

SPRAT Level 1 rope access · WFR · NCTSN Psychological First Aid — which is why ropesim gets checked against real fall factors, drugdose came out of protocol I was already carrying on paper, and DiresQ tracks the responders instead of the incidents.

Rust and Python, mostly. Half of it is libraries, half is GUIs, occasionally it's a Rust core that makes the whole thing 100× faster.

into right now — a language of my own (nexium) · gesture-driven instruments · geospatial / OSINT · purple-team RNG analysis · climbing rope dynamics

outside the keyboard — skiing the sierras · surfing the coast · trad climbing anywhere I can drive to

reach me → discord _londo.

The pieces that show the range. The full index of 32 projects across 11 domains lives on the site » — filterable by tag and language, with writeups.

Clears WDA_EXCLUDEFROMCAPTURE by DLL injection, so windows that opted out of screen capture show up again. Multi-crate Cargo workspace, egui GUI, Inno installer.

Compiles to native code through C, with automatic reference counting — no tracing collector — and a machine-checked effect system that says whether a function allocates, blocks, or can panic. One source tree ships as a C library, a Python wheel, a Rust crate, or a CLI, all from nx ship.

Parse, query, and validate Keep a Changelog markdown and YAML — then fail the build when a release note is malformed or missing. Small, boring, and the one people actually installed.

UIAA / EN 892 impact-force modelling. Damped-spring RK4 integrator in Rust, bound to Python through PyO3 / Maturin, wrapped in a CLI and a PySide6 3D GUI — four layers, three languages, one install.

Every disaster app tells you where the disaster is — this one tracks the people going into it. Join a report, check in on a timer, and the accountability board turns red if you go dark. Reports and check-ins work offline, and the whole thing runs without JavaScript. It parses times with timefuzz and validates its changelog with patchnotes — two of my own libraries. Built at Katy Youth Hacks 2026 with @Skythe7.

🎲 deadpoint   Purple-team RNG analysis. Detects weak PRNG usage, then proves it: recovers MT19937 / LCG / xorshift state with a Z3 constraint solve and predicts future and past outputs. Ends with the CSPRNG fix, not just the finding.  writeup »

⏱️ timefuzz   Fuzzy natural-language time parsing. Goes where dateparser stops: resolves "end of Q3" or "the Tuesday after my birthday" into a datetime or range, with a confidence score so you can decide whether to trust it.  writeup »

💊 drugdose   EMS & clinical dosing calculator. Weight-based dosing against a bundled 49-drug database, plus 39 interaction rules with severity and management guidance. Pure Python, zero runtime deps.  writeup »

🪟 HideDesktopApps   Tray daemon that hides desktop icons, taskbar, and every window on a hotkey. For ricing, Wallpaper Engine, and not flashing your desktop mid-presentation. Ships through winget and Scoop.  writeup »

🎹 gesture-synth   A chord instrument you play with your hands in front of a camera — MediaPipe hand-tracking drives the synth, a loop pedal layers four tracks, and the harmony is drawn back at you in 3D. One codebase spanning Rust/WASM, Svelte + Three.js, a Tauri app, a Zig DSP kernel, and a Gleam service.  writeup »

🏔️ whumpf   Avalanche bulletins projected onto the real mountain in 3D. Slope, aspect, and elevation are packed into RGBA tiles and filtered in a GLSL shader, so a whole range recomputes as you drag a danger slider — answering the question the bulletin doesn't: is the slope in front of me one of those slopes?  writeup »

🗂️ filekind   Make a custom file extension a real, recognised file type — on Windows, Linux and macOS — from one declarative spec. Generates the registry tree, freedesktop MIME XML, macOS UTI plist, icons in three formats, and the install/remove scripts.  writeup »

_{generated nightly into this repo — no third-party uptime to depend on}

londo@dev:~$ env | grep STACK

LANGUAGES        = Python · Rust · TypeScript · C++ · Bash
BUILD_AND_SHIP   = PyPI · Maturin · PyO3 · GitHub Actions · PyInstaller · Cargo workspaces
                   winget · Scoop · Inno Setup
DATA_AND_VIZ     = NumPy · Pandas · Matplotlib · Seaborn · Folium · Vispy
GUI              = PySide6 · Qt · egui · Tkinter · pystray · pywin32
WEB              = Astro · Flask · TypeScript
INFRA            = SQLite · Win / Linux / macOS · DLL injection · Win32 · Z3
CREATIVE         = Nuke · Maya · After Effects · Premiere · AutoCAD · Houdini

%%{init: {'theme':'base','themeVariables':{'primaryColor':'#FAF6EC','primaryTextColor':'#2A2418','primaryBorderColor':'#7A5C3A','lineColor':'#7A5C3A','tertiaryColor':'#FFF8EC'}}}%%
mindmap
  root((London))
    Systems & Windows
      capture-bypass
      HideDesktopApps
      clipvault
      pc-optimizer
    Security tooling
      kto
      deadpoint
    Pre-hospital & clinical
      drugdose
      vitalscore
      Clinical_IQ
      akribia
      DiresQ
    Climbing & outdoors
      ropesim
      whumpf
      apollo-rope-memory
    Geospatial / OSINT
      pygeospy
    Networking & privacy
      qbit-killswitch
      mullvad-wg-monitor
      beam
    Dev tooling & languages
      nexium
      patchnotes
      timefuzz
      filekind
    Claude Code tooling
      skill-rollcall
      mcp-rollcall
      settings-effective
      git-attribution
    Audio & instruments
      gesture-synth
      IEM-Tool-rs
    AI & vision
      facial-recognition
      convo-generator
    Consumer & games
      ValoTracker

londo@dev:~$ contributions --animate

Snake eats my commit graph daily. Looks better with the dark theme on.

• nexium v1.0.1 — today
• skill-rollcall v1.1.0 — today
• gesture-synth v0.3.0 — 5 days ago
• filekind v0.5.1 — last month
• patchnotes v2.6.0 — last month
• akribia v0.1.4 — last month

freshman year. just getting started.