About

I build apps on my own and support them after release.

Hjalmar Karlsen
TidexLyricLintAmpoteketKvistkvilPaeonia

I build complete apps on my own, backend included. My shift and pay tracker Tidex is live on the App Store, and I handle its reviews, crash reports, and user support. My newest projects are on the web: LyricLint, an offline lyric editor built with SvelteKit, and Ampoteket, a web shop and stock system for an electronics workshop.

View my GitHub profile

How I work

I finish what I start
Tidex has shipped versioned releases, data migrations, and support for real users.
I own the whole stack
I write the database schema, the server code, and the interface, so I can debug every layer.
Users before technology
Pay must be correct, and drafts must survive a crash.