Research, web, tools. What I built, and what building it taught me.https://7xz.dev/kohttps://7xz.dev/work/7xz-lab/https://7xz.dev/work/7xz-lab/A neural network you train, break, and rebuild in the browser, with every forward pass, gradient, and optimizer written by hand. Prune a neuron and it shows the loss change three ways: the direct before/after difference, a path-integral estimate, and a second-order estimate.Thu, 01 Jan 2026 00:00:00 GMTtoolslivehttps://7xz.dev/work/foundational-theory/https://7xz.dev/work/foundational-theory/Finding an exact, approximation-free relation for the loss change under an arbitrary weight perturbation, and validating it on pruning and quantization.Thu, 01 Jan 2026 00:00:00 GMTresearchresearchhttps://7xz.dev/work/zone-alert/https://7xz.dev/work/zone-alert/Alerts on a zone intrusion only when a person is present alongside the target, cutting the false alarms that animals and the environment cause.Wed, 01 Jan 2025 00:00:00 GMTtoolsshippedhttps://7xz.dev/work/fora/https://7xz.dev/work/fora/A portfolio site for FORA, a composer working in fantasy and narrative scoring: KO/EN toggle, responsive, an audio player, SEO.Thu, 01 Jan 2026 00:00:00 GMTwebshippedhttps://7xz.dev/work/discord-cpv2/https://7xz.dev/work/discord-cpv2/Every Discord Components V2 type in one runnable file: a reference you copy from instead of reading docs.Thu, 01 Jan 2026 00:00:00 GMTtoolsreferencehttps://7xz.dev/work/news-credibility-auditor/https://7xz.dev/work/news-credibility-auditor/A tool that analyzes the credibility of a news article: a FastAPI backend with Gemini.Wed, 01 Jan 2025 00:00:00 GMTtoolsarchived