push2talk v0.2.0

See the assets below for your platform.

• Linux: .deb or .AppImage
• macOS (Apple Silicon): the aarch64 .dmg
• macOS (Intel): the x86_64 .dmg

macOS builds are unsigned/unnotarized — Gatekeeper will warn on
first launch (right-click → Open to bypass, or xattr -d com.apple.quarantine push2talk.app).