Tamás VighNotes on building for the browser in Rust and WebAssembly: canvas rendering, Web Audio, offline-first storage.https://tamasvigh.comenA squash scorer whose share link is the whole matchhttps://tamasvigh.com/projects/a-squash-scorer-that-shares-the-whole-matchhttps://tamasvigh.com/projects/a-squash-scorer-that-shares-the-whole-matchSquash keeps every match on the device and still shares one. The link carries the events rather than a reference, why that makes a hostile link a denial-of-service problem, how an await can spend the user activation a share sheet needs, and the iOS split that made a paste box necessary.Fri, 02 Oct 2026 00:00:00 GMTwebpwaofflinetypescriptA test that cannot fail is not evidencehttps://tamasvigh.com/thoughts/a-test-that-cannot-failhttps://tamasvigh.com/thoughts/a-test-that-cannot-failThree ways a green suite lies. The test that never goes red, the one measuring the wrong thing, and the baseline that already contains the bug. All three cost me a day recently.Tue, 29 Sep 2026 00:00:00 GMTtestingtddverificationThe guard was on the wrong nounhttps://tamasvigh.com/thoughts/the-guard-was-on-the-wrong-nounhttps://tamasvigh.com/thoughts/the-guard-was-on-the-wrong-nounA permission check that named one action instead of a capability, and survived four rounds of review because each round fixed the example rather than the category. What SOLID is actually for.Tue, 29 Sep 2026 00:00:00 GMTdesignsolidrustsecurityTwelve factors when you do not own a processhttps://tamasvigh.com/thoughts/twelve-factors-without-a-processhttps://tamasvigh.com/thoughts/twelve-factors-without-a-processThe twelve-factor app was written for long-running processes on a platform that no longer describes how most things ship. Which factors survive a static front end and an edge function, which invert, and which quietly still bite.Tue, 29 Sep 2026 00:00:00 GMTarchitecturedeploymenttwelve-factorA music player at an old addresshttps://tamasvigh.com/projects/a-music-player-at-an-old-addresshttps://tamasvigh.com/projects/a-music-player-at-an-old-addressPlayer took over player.tamasvigh.com from Rustamp, and with it the songs Rustamp had stored there. Why a library belongs to an address, an id that had to stay Rustamp's and became five times faster, an update that is really a takeover, two Hungarian letters, and what is untested.Mon, 28 Sep 2026 00:00:00 GMTwebaudiostoragepwaHanding a file to the device next to you, with no server in betweenhttps://tamasvigh.com/projects/handing-a-file-to-the-device-next-to-youhttps://tamasvigh.com/projects/handing-a-file-to-the-device-next-to-youRustamp's phone-to-phone sharing as a page for any file up to 10 MB. A handshake that travels as a link, a phone that cannot show a code and read one at once, a reply the receiver must not answer, and what is untested.Sat, 26 Sep 2026 00:00:00 GMTwebrtcrustwebassemblywebEstimating a pulse from a webcam in Rust and WebAssemblyhttps://tamasvigh.com/projects/heart-rate-from-a-webcamhttps://tamasvigh.com/projects/heart-rate-from-a-webcamA browser page that estimates a pulse from the colour of a face. How a signal smaller than one 8-bit level is recovered, why a uniform brightness change cancels exactly, and what does not work.Sat, 26 Sep 2026 00:00:00 GMTrustwebassemblywebsignal-processingBuilding a Winamp in Rust and WebAssemblyhttps://tamasvigh.com/projects/building-a-winamp-in-rusthttps://tamasvigh.com/projects/building-a-winamp-in-rustA Winamp 2.x player in Rust and WebAssembly. Why the skin is drawn at runtime, how the peer-to-peer handshake fits in 102 bytes, and what does not work.Fri, 25 Sep 2026 00:00:00 GMTrustwebassemblyaudioweb