Working notes on systems we have had to reason about.https://tektonix.xyzen-ushttps://tektonix.xyz/notes/the-rent-on-your-softwarehttps://tektonix.xyz/notes/the-rent-on-your-softwareSaaS prices rose 11.4% in 2025 against 2.7% general inflation. The gap is not an accident — it is the business model working as designed.Sun, 02 Aug 2026 00:00:00 GMTbuying-softwarecostshttps://tektonix.xyz/notes/the-spreadsheet-that-runs-your-companyhttps://tektonix.xyz/notes/the-spreadsheet-that-runs-your-companyAudits keep finding errors in roughly nine out of ten operational spreadsheets. The errors are not the real risk.Tue, 21 Jul 2026 00:00:00 GMToperationsriskhttps://tektonix.xyz/notes/why-ai-pilots-failhttps://tektonix.xyz/notes/why-ai-pilots-failMIT studied more than 300 enterprise AI deployments and found 95% produced no measurable return. The failures had almost nothing to do with the models.Tue, 07 Jul 2026 00:00:00 GMTaioperations