Notes on Android, Kotlin and shipping.
Write-ups from building the studio’s apps and tools: what broke, what fixed it, and what shipped.
20 posts
Adding Kotlin Multiplatform to an existing Android app: the iOS side
Adding Kotlin Multiplatform to an existing Android app hands iOS a Swift package with an Objective-C-shaped API. Swift export is Alpha; builds need a Mac.
BS-RoFormer, viperx 1296 and BS-PolarFormer: what the SDR numbers mean
BS-RoFormer viperx 1296 scores a 12.10 dB median vocal SDR on 40 tracks; the 12.96 in its filename is a label. BS-PolarFormer's 11.00 is from another test.
Is Kotlin Multiplatform production-ready? Every status, dated
Kotlin Multiplatform is production-ready for Android and iOS: Stable since Nov 2023, Compose Multiplatform for iOS since May 2025. Swift export is Alpha.
Isha at 11pm: how prayer apps handle summer nights in the UK
In a UK summer the sun never sinks far enough for the usual Isha angle, so prayer apps cap Isha with a high-latitude rule. All three rules, for London.
JetBrains Toolbox proxy settings and certificates that survive updates
JetBrains Toolbox proxy settings and certificates live in .settings.json: a proxy block, plus a network.keystore that adds trust without patching cacerts.
Kotlin Multiplatform vs Flutter vs React Native for native app teams
Kotlin Multiplatform vs Flutter vs React Native: if you already ship native iOS and Android apps, KMP shares code without a rewrite. When the others win.
Why your Logitech keyboard types the wrong keys after a KVM switch
A Logitech keyboard stores its Mac or PC mode per Easy-Switch channel, so a KVM switch leaves it in the last computer's mode. Fn+O or Fn+P fixes it.
A Logitech Unifying or Bolt receiver behind a KVM switch: what works
A Logitech receiver behind a KVM switch types on any port, but only a USB hub port passes HID++, which Options+, Solaar and layout tools need.
Move IDM to a new PC with your categories and folders intact
To move IDM to a new PC, export HKCU\Software\DownloadManager, quit IDM on the new machine, import the file, and put your folders back at the same paths.
Never look up from work and realise you missed Asr.
Free$14.99 PromacOS 14+
The studio behind these notes ships PrayerTimes Pro, VocalDrop, Magic BG Remover, jtaccel, Layout Auto Switcher, Touch ID for sudo and IDM Download Router.
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