Matt Lacey - Software Developer

Creating maintainable software that adds "real" value

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Friday, September 25, 2026

VS [Code] Marketplace error: "An item with the same key has already been added."

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 If you're very unlucky and when trying to upload a new extension to the VSCode marketplace, you may get this error: " An item with...
Monday, July 20, 2026

Human questions to ask in code reviews

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Automated (AI) powered code reviews are becoming increasingly popular and powerful. I use them myself to catch things I miss. But there are ...
Wednesday, July 08, 2026

Is second-order enshittification a thing?

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  Enshittifcation, as a term popularized by Cory Doctrow , has for many become a catch-all term for things generally getting worse. I'v...
Saturday, April 11, 2026

It's probably not an MVP

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It's common for people to refer to early versions of software as MVPs (Minimum Viable Products). Only, that's not what an MVP is mea...
Wednesday, November 12, 2025

Resetting the experimental instance of Visual Studio has changed in 2026 (v18)

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Updated Jan 7th 2026 -- see below If you build extensions for Visual Studio, you'll know that sometimes (frequently?--depending on what...
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