Full-stack developer building industrial software, e-commerce and internal tools. Author of the KatanaKit family of open-source tools.

• Focus — Production web apps with server-side rendering, strong typing and boring, dependable tooling.
• Architecture — Hexagonal boundaries, SOLID, design systems built as tokens first and components second.
• Domain — Warehouse and inventory systems for manufacturing and logistics, plus storefronts for local businesses.
• Open source — Four KatanaKit libraries: a TypeScript service toolkit, an SCSS framework, a systemd TUI and a Docker-driven WordPress config.
• Off the clock — Minimalist photography, Arch and Debian tinkering, and a second-brain Obsidian vault run with the CODE method.

KatanaKit — open source

• katanakit-js — Framework-agnostic TypeScript service toolkit built on hexagonal architecture. Docs
• katanakit-css — Modular SCSS framework: design tokens, utility classes and an @apply-style system.
• katanakit-sysli — ksys, a TUI for units, timers, journal, boot, network and sessions.
• katanakit-wp — Code-first WordPress configuration. Bun scripts wrapping PHP in Docker.

Apps

• hueplay — Interactive tool for reading the difference between HSL and OKLCH.
• empresaplana.cat — Transport company site and dashboard. Astro with Vue islands, Prisma and PostgreSQL.
• erp-lite-dashboard — Multi-company ERP for logistics and distribution. FastAPI, SQLAlchemy and Nuxt, SQLite by default.
• pos-system — Point of sale and inventory platform on Nuxt 4, Prisma and hexagonal boundaries.

Personal

• plate-numerology — Numerology plate generator, built as a side project.

• GitHub — senseikatana
• Docs — docs.senseikatana.com
• Email — github-senseikatana@protonmail.com

Released under the MIT License © 2026 Sergio Jurado.