If v1.1 crashed the moment you entered ambient mode with a visualizer selected — this is the fix. Please update.
The bug
The visualizer shaders ship inside the app (Contents/Resources/Dhun_Dhun.bundle), and they were there all along — but the Swift Package Manager–generated Bundle.module accessor used to find them never looks in Contents/Resources for executable targets. It checks exactly two places: the app bundle's root, and an absolute path into the build directory of the machine that compiled it. So the visualizers worked perfectly on one computer in the world (the dev machine, via that second path) and called fatalError on every other Mac.
v1.1.1 resolves the resource path by hand via Bundle.main, and the build script now fails loudly if the shader bundle is ever missing from a build. Nothing else changed.
How to update
One line in Terminal (no Gatekeeper dialog):
curl -fsSL https://raw.githubusercontent.com/Ayush-pbh/dhun/main/install.sh | shHomebrew: brew update && brew upgrade --cask dhun, then xattr -d com.apple.quarantine /Applications/Dhun.app
Or download Dhun-1.1.1.dmg below (first launch: System Settings → Privacy & Security → Open Anyway).
See the v1.1.0 notes for everything that shipped in 1.1 — the eight audio-reactive visualizers, React to sound, the debug overlay, and the About pane.
Dhun is an independent project and is not affiliated with or endorsed by Spotify.