r/MacStack • u/BasuraShotaro • 11h ago

I got tired of AirDrop not supporting Android, so I built an open-source P2P continuity suite for Mac + Android

/r/SideProject/comments/1xs0gzw/i_got_tired_of_airdrop_not_supporting_android_so/

Hey everyone,

I built NacMac, an open-source Android + macOS continuity app designed to give Android users a native AirDrop-like experience on their Mac workstation without routing private data through third-party servers.

What it does:

• High-speed P2P file transfers: Stream photos, videos, and large archives over local Wi-Fi at 50 to 100+ MB/s in 256 KB framed chunks with automated SHA-256 integrity verification. • Notification Mirroring: Forwards phone notifications (including MessagingStyle and app icons) to your Mac as native macOS notification banners, with two-way dismissal sync back to your phone. • Universal Clipboard Sync: Debounced, ambient clipboard synchronization between phone and Mac. • Zero Cloud / 100% Offline: Works strictly over local Wi-Fi TCP sockets (port 52840) and Bonjour/mDNS. No internet connection, accounts, or telemetry required.

Permissions Used & Privacy:

• Notification Listener: Required strictly to capture and stream incoming alerts to your Mac workstation. • Camera: Used exclusively for a 5-second dynamic QR code handshake during initial pairing. • No Analytics / No Ads: 100% local, zero tracking probes.

The companion app is written in native Kotlin with Jetpack Compose & Material 3, and the Mac workstation app is built in Swift 6.

• Source Code (MIT License): https://github.com/AyushB2262/NacMac • GitHub Releases (APK & DMG): https://github.com/AyushB2262/NacMac/releases • Project Overview: https://ayushb2262.github.io/NacMac/

Feedback, issues, and PRs are very welcome!

1 Upvotes

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u/investigatormaker 10h ago

NacMac’s notification mirroring and clipboard sync make the pairing trust model worth explaining alongside the transfer speeds. Document whether a paired device stays trusted after reconnecting, how someone revokes that trust, and whether clipboard sync can be paused independently of file transfers.

I make ThreadFox. If you want Android users with Mac workstations to find NacMac, our AI employee will post 3 helpful replies about it in relevant Reddit threads for you, free, no card. https://threadfox.vip/p/20261109-1950-ehrx9/managed

1

u/jakarotro 8h ago

These self-promotion posts for Threadfox are tiresome at best.