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instantiator.dev

I'm a senior tech lead, writing about tech, volunteers, public safety, and collective intelligence. This blog contains articles, tools, code and ideas.

© Lewis Westbury 2026

A quick guide to running your own tile server, with a geo database populated from OpenStreetMap data.

FlipperZero is a digital signals multi-tool. Here’s a short guide to the basics of building an app for it…

See also:

Exploring your personal Netflix viewing history…

TLDR

If you’d like to generate your own Netflix data visualisation, feel free to make use of this Jupyter notebook:

This is a quick guide to some of the features of the Semantic Kernel, a Software Development Kit that simplifies integration of language models into your own applications.

A tool to design 3D printed crossword puzzles.

Generating 3D crossword models

I’ve been working on a tool to generate crossword designs using OpenSCAD. The output is an STL file that you can use with your favourite slicer and send to a 3D printer. It’s open source, and you’re free to plunder it for tips, techniques, or to generate your own…

Presenting a simple template to develop, publish, and test a simple C# service backend on AWS, with serverless Lambda functions, supported by DynamoDb, behind an API Gateway, and protected by Cognito auth.

It took me 3 weeks to complete the day 11 puzzle for Advent of Code on a BBC Micro this year, and you’d be hard pressed to describe my solution as “proportionate” or “necessary”…

I’ve been working on a pet project recently: Consensus games are a fun new way to play together through social media…