Some are for sale, some are open. All of them stand on the same code as my client work — and I run every one of them in production.
Each product is bought on its own site — here you get who it is for, a starting price and the link. The full price list and terms live at the source.
For businesses with their own site, and the agencies that build them.
GDPR consent, Google reviews, forms, cookieless analytics and an AI chat — ready-made modules installed with one tag. This site runs on them too.
For restaurants with 1–3 venues and their own delivery.
Online ordering, reservations, a floor plan and a staff console on the restaurant's own domain. A flat fee, 0% commission. In production at Sushi Zushi.
For homes and small offices that want their files at home, not in someone else's cloud.
I'll set up your own NAS or a home or office cloud: on an old PC or new hardware, with a disk pool, snapshots, SMB shares and a copy to a second machine. You get a working box with access from the browser and your phone.
For Polish sole traders and small companies invoicing through KSeF.
Self-hosted invoicing: schema-validated FA(3), KSeF submission, UPO tracking and an offline queue for outages. One container, your data on your disk.
For Polish secondary-school students and their parents.
Courses for the Polish maths matura and the year-8 exam: short lessons, worked solutions and visible progress. One payment for the whole school year. In Polish.
For Angular teams building admin panels and back-office systems.
An extension of the open mk-kit: an advanced data grid, a scheduler, Gantt and ready-made admin templates, with a commercial licence and an offline key.
The library the rest stands on, and the small self-hosted apps at mkapps.dev. The code is public, so you can judge the level before we talk.
165+ standalone, signal-based components: data tables, SVG charts, forms, kanban, an app shell. CSS-variable theming, WCAG 2.1 AA, MIT licence. Gastronaut and every mk app are built on it.
A web drive over the folders you already have: photos on a timeline, previews, a trash, share links. No database.
One page for the server under your desk: live vitals, containers and logs, SQLite backups, push alerts to your phone.
One instance, any number of client sites: content types from the admin, revisions, translations, media, a WordPress importer.
Make a list, send a link, and people reserve gifts so nobody buys the same thing twice. Still live, but development is paused.
A thin layer over Ubuntu Server and OpenZFS: pools, snapshots, SMB/NFS shares and copies to another box — from a USB stick, in a browser. Free, AGPL-3.0; having it installed for you is listed above, under “For sale”.
Ubuntu · OpenZFS · Node.jsA board that lives inside the project's repository. Edit it in the UI, in Obsidian, or hand it to an AI agent through the CLI.
Angular · mk-kit · Node.jsOne thing now, a board behind it, today on the side. Runs in the browser alone or with your own sync server.
Angular · mk-kit · Node.jsI set them up as a service: installation, configuration, backups and a short walkthrough. A fixed price, agreed before we start.