Systems / Native In development · Phase 2b

Kiln

A cross-platform audio engine, in active development, built in the open. Android and Windows desktop, from scratch, on Kotlin Multiplatform.

One Compose UI over two targets, down through a typed decoder seam to a C library.

Why it's hard

A JNA bridge to vendored libFLAC 1.5.0 gives bit-exact decode on both targets. A single Compose Multiplatform UI drives Android and the JVM desktop. SQLDelight FTS5 powers instant library search, and every decoder edge returns a typed Arrow Either instead of throwing. Built clean-room: no GPL carried over from the predecessor.

Proof it's real

179commits
91tests · green dual-OS CI
2platforms · Android + Windows desktop
2Android devices · Pixel 7 Pro + 10 Pro XL

Where it's going

MVP FLAC library, decode, playback shipped
Phase 2a dynamic theming, EQ, FFT visualizer, settings shipped
Phase 2b low-latency engines, 31-band EQ, published libraries in progress
Phase 3 measurement-mic room correction

Watch it build on GitHub