Ollie Fritz - writing

Getting Kobo sync to work for Calibre Web on TrueNAS

ollie — Sun, 05 Apr 2026 00:00:00 +0100

How to fix the “Download failed” issue for Kobo sync with Calibre Web on TrueNAS

Building a Homebrew AI Cluster from Old Dell XPS Laptops

ollie — Sat, 30 Aug 2025 00:00:00 +0100

Turning discarded office laptops into a DIY compute cluster for AI/ML workloads. It won't beat cloud GPUs, but it's a fun way to learn distributed computing on a budget while giving old hardware a second life.

dlt Merge leading to Memory Overcommit in ClickHouse

ollie — Wed, 23 Jul 2025 00:00:00 +0100

Root cause analysis of the dlt merge strategy leading to a Memory Overcommit error and possible options.

Making a Wi-Fi picture frame with an old monitor

ollie — Sun, 04 Feb 2024 00:00:00 +0000

Using an old monitor and a Raspberry Pi Zero to make a Wi-Fi enabled picture frame

WhatsApp Android Image Scraper

ollie — Sun, 19 Mar 2023 00:00:00 +0000

Automating WhatsApp image scraping via ADB, Python, and OCR