Bring the web
closer.

Version 0.0.9 is ready for macOS 15.5 or later.

Sumi

Sumi 0.0.9

AlphamacOS 15.5+

From download
to first open.

Requirements: macOS 15.5 or later and an Apple Silicon Mac (M1 or later). The current build is not yet notarized; follow these steps only for Sumi downloaded from this website or the official GitHub repository.

  1. 1

    Download Sumi

    Open the DMG when the download finishes.

  2. 2

    Move it to Applications

    Place Sumi.app in /Applications before opening it.

  3. 3

    Open Sumi

    If macOS reports that Sumi is damaged, copy and run these commands in Terminal.

    sudo xattr -dr com.apple.quarantine "/Applications/Sumi.app"
    open "/Applications/Sumi.app"

    The Terminal workaround is only for current non-notarized development builds.