https://signalhouse.nz/blog/ Damon Zhang on building and running production software. en-nz https://signalhouse.nz/blog/nearbuild-council-pdf-to-map/ https://signalhouse.nz/blog/nearbuild-council-pdf-to-map/ Tue, 29 Sep 2026 00:00:00 GMT Auckland Council only publishes resource consent applications as a 300-page PDF. This is how I parse it every hour, keep the data honest, and put it on a map by address. https://signalhouse.nz/blog/static-sites-cloudfront-s3-migration/ https://signalhouse.nz/blog/static-sites-cloudfront-s3-migration/ Mon, 28 Sep 2026 00:00:00 GMT One CloudFormation stack per site, byte-level verification, a DNS cutover you can roll back, and the caching mistake behind 94% of our CloudFront requests. https://signalhouse.nz/blog/kivoza-browser-tools-boundaries/ https://signalhouse.nz/blog/kivoza-browser-tools-boundaries/ Sun, 20 Sep 2026 00:00:00 GMT Seven small sites from one repo: image, OCR and PDF tools that run fully in the browser, and a Markdown converter that uploads only four formats, with consent, to a locked-down container. https://signalhouse.nz/blog/paytaxnz-rebuild-golden-assertions/ https://signalhouse.nz/blog/paytaxnz-rebuild-golden-assertions/ Mon, 07 Sep 2026 00:00:00 GMT How I rebuilt PayTaxNZ from Laravel to a TypeScript monorepo without trusting myself: a pure tax engine, 186 assertions written before code, and a field-by-field reconciliation with zero unexplained differences. https://signalhouse.nz/blog/aparima-money-code/ https://signalhouse.nz/blog/aparima-money-code/ Sun, 30 Aug 2026 00:00:00 GMT Giving, refunds, recurring plans and venue deposits look like simple forms. Under them are five rules that stop double charges, lost refunds and leaked data.