b1t-ninja

I make fast, utility-based apps for macOS and the terminal, mainly with Swift, Rust, Metal and WGSL. Lately: mostly peer-to-peer networking.

aim with the shuriken · swipe to slice the bamboo · click the moon

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01 Who builds these

About me

Hi, I'm Nico, the guy behind b1t-ninja. I studied CS and I've been writing software for a while now. In my downtime I like going fishing and walking my dog!

I strive to create beautiful and functional software that stays out of your way. Scroll down and check out what I've been working on.

Swift · SwiftUIRustTypeScript · React · AngularMetal · WGSLPeer-to-peermacOS appsTerminal UIs

GitHub →Substack →

02 Menu-bar app · Swift

Whoosh

Throw files from one Mac to another, across the desk or across the world, straight from the menu bar.

  • Macs nearby just show up; anyone else is one code away
  • Hit a shortcut and the drop shelf pops up right under your pointer
  • Your chosen name, picture and color travel with you to every Mac nearby
  • Zenitsu's Thunder Breathing crackles round the window the whole time

SwiftUI · Liquid GlassPeer-to-peerMetal shaders

Go on, it's the real panel, running as a demo. Drop a file, pick a Mac, or switch to Anywhere for a code. Your files are never uploaded or sent anywhere: they don't leave your browser.

whooshDemo · nothing is sent
Add something, then choose a device

03 Menu-bar app · Swift

Shikon

Your secrets, sealed inside the Shikon no Tama: a pocket Keychain vault that lives in the menu bar.

  • Summon the jewel from anywhere with a global hotkey
  • Strike it with Kagome's arrow and it shatters open into your vault
  • Find anything with / and copy with a single key; the clipboard keeps it concealed
  • CSV in, CSV out; everything else stays in the macOS Keychain
  • Every reveal gets a soul-collector flyby

Swift 6 · SwiftUI · AppKitKeychainMetal stitchable shaders

Take the shot: click the jewel. Inside, / searches, a row's letter copies it, the eye reveals it and the shard seals it all back up. The secrets are fakes that vanish when you leave.

Opt-in: your camera turns into a pixel kitty right here in your browser. Nothing is sent or saved.

04 Terminal app · Rust

Hakuterm

A chat room in your terminal: peer-to-peer video, voice and chat, with no accounts and no servers to run.

  • Host a room, share an hk1_… invite, and peers connect directly to you
  • Video calls drawn right in the terminal
  • Vim-style editing and :emoji: shortcodes, for the vibes
  • Room-wide effects everyone sees: fireworks, digital rain, Hollow Purple, Black Flash

RustBevy ECS · RatatuiPeer-to-peer

Click the screen and say hi. Enter sends, Esc drops into normal mode (j/k scroll, i to type again) and : runs commands: try :fx purple, :fire: or :video. The monitor turns to follow your pointer.