Independent software, made in Warsaw, Poland
Terminals you can arrange. Email you can program.
Software that makes space for the way you work.
Give your terminals some room.
An infinite, zoomable canvas for your terminals. Arrange shells, group projects, and move between the details and the whole session.
Explore RACE
Your email. Your rules.
A keyboard-driven email client. Organize mail with rules, choose what the message list shows, and write replies in your editor.
Meet inboxctl
Open-source tools for working with code and diagrams.
Put instructions in your source files. Let an LLM fill in the marked sections.
Fit curves and process contours with a browser-based SVG tool.
Draw ASCII and Unicode diagrams from your keyboard on an infinite canvas.
Compose diagrams with Pikchr, Prolog, or Tcl, with live preview and SVG/PNG export.
A native graphical interface for Kakoune, with multiple windows and macOS integration.
Generate project files and directories from a single text template, with variable substitution.
Work on the tools I use and care about.
03 / The person behind E-1
I’m Przemysław Alexander Kamiński, a software engineer with 20+ years of experience and a habit of building my own tools.
E-1 is my independent software business. I work on terminals, email, editors, and the small details that make a computer feel like yours.
I write about engineering, programming languages, and things beyond software on my personal blog.