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Jason Schwarzenberger

Senior Full-stack Software Engineer

Tags » 2026

Visualisation of My Telegram Chats

Visualisation of my Telegram chats & contacts. Names of users and chats have been redacted.

A T-Deck for My Child Instead of a Phone

When I came across the T-Deck, I thought it could be a fun device to give to my child instead of a phone so she can navigate Whangārei and still be in contact with us.

I didn't expect that I would fork a C++ project to extend the firmware to my liking.

Timer

As an effort to learn a bit about React, I created a timer that uses the Temporal API.

Measurement is based on duration between Temporal.Instant instances, subtracting any accumulated paused time.

LOLcryption

In 2015 I created LOLcryption, a Caesar substitution cipher that aims to preserve some ability to pronounce the output.

As an effort to learn a bit about React, I created a LOLcryption component and website that replaces the original.