Hey, thanks for stopping by.

I work as a cloud engineer and architect. When I spot something broken, at work or at home, I find it hard to leave it alone until I have fixed it.

I'm a terminal lover, and I enjoy home automation enough that I went and got certified by both Ampio and KNX. Most of the projects below came out of those two interests and out of making my Mac fit the way I work.

Most of the apps and tools install from my Homebrew tap, for example brew install --cask pszypowicz/tap/cyclist.

• MicGuard - a menu bar app that stops Bluetooth headphones from taking over the default microphone.
• cyclist - a text-only app switcher in the style of alt-tab.
• BrightSync - copies the brightness of the built-in display to external displays over DDC/CI.
• sequester - an SSH agent that keeps keys in the Secure Enclave and sets forwarding rules per key.
• TrackpadKit - a trackpad gesture recognizer for AppKit, built on raw touch events.

• pager - macOS notifications that focus the right window on click and clear themselves, sent from a shell or a tmux hook.
• afm-summarize - summarizes stdin into one short sentence with Apple's on-device Foundation Models.
• optiprime - a terminal UI that keeps a directory of Azure DevOps repositories in sync.

• ampio-homeassistant - an integration for the Ampio smart home system.
• ampio-mqtt - the async Python client that the integration uses to talk to Ampio over MQTT.
• siipet-homeassistant - an integration for SiiPet pet health devices.
• scene_state - tracks whether a scene is active.
• state-card-feature - shows the entity state inside a card.

• hugo-theme-pager - the monospace theme that my blog uses. It fits the first page load into 14 KB.
• dotfiles - my macOS setup, managed with GNU Stow and installed by one bootstrap script.
• claude-skills - a small plugin marketplace for Claude Code.

These forks carry changes I use every day on top of upstream releases. I'd like each change to land upstream so the forks are no longer needed.

• ghostty - trackpad gestures that bind to any action, and a reporting mode (DEC private mode 2035) that passes gestures to terminal applications. Install with brew install --cask pszypowicz/tap/ghostty-personal.
• tmux - turns those gesture reports into key names such as Swipe3Left and PinchIn that you can bind. Install with brew install pszypowicz/tap/tmux-gestures.
• AeroSpace - BSP-shape normalization, per-workspace normalization overrides, and a focus fix for windows restored from the Dock. Install with brew install --cask pszypowicz/tap/aerospace-bsp.

These are projects I've sent pull requests to, and each link opens the list of my pull requests there.

• core
• frontend
• docs
• brands

• bmw-cardata-ha
• homeassistant-mitsubishi
• pymitsubishi
• hass-eaton-ups-mqtt
• lovelace-horizon-card
• iSponsorBlockTV
• HAP-python
• python-glances-api

• AeroSpace
• SketchyBar
• colima
• homebrew-cask

• checkov
• terraform-switcher
• warrensbox/homebrew-tap

• blog.szypowi.cz - posts about problems I ran into and kept digging at.
• LinkedIn