Install

Postbin Ultra is a native desktop app. Pick your platform.

#One-liner (macOS + Linux)

sh
curl -sSL https://raw.githubusercontent.com/MPJHorner/PostbinUltra/main/scripts/install.sh | bash

The script detects your OS + arch, grabs the right release artefact from the latest release, drops it in the right place (/Applications on macOS, ~/.local/bin/PostbinUltra on Linux), and prints how to launch it.

#macOS

#Drag-and-drop (.dmg)

Download the matching .dmg from the latest release:

Platform Archive
Apple Silicon PostbinUltra-<version>-aarch64-apple-darwin.dmg
Intel PostbinUltra-<version>-x86_64-apple-darwin.dmg

Open it, drag PostbinUltra.app to Applications, double-click. The capture server binds 127.0.0.1:9000 on first launch.

#Homebrew (planned)

A tap is on the way:

sh
brew install --cask MPJHorner/postbin/postbin-ultra

Status: tracked here. Use the .dmg for now.

#Gatekeeper warning

The first launch shows "PostbinUltra cannot be opened because the developer cannot be verified." The release artefacts are unsigned for v2.0.0. Two ways to authorise:

Notarised builds are on the v2.1 roadmap.

#Linux

#Tarball

Download the matching .tar.gz from the latest release:

Arch Archive
x86_64 PostbinUltra-<version>-x86_64-unknown-linux-gnu.tar.gz
arm64 PostbinUltra-<version>-aarch64-unknown-linux-gnu.tar.gz
sh
tar -xzf PostbinUltra-2.0.0-x86_64-unknown-linux-gnu.tar.gz
./PostbinUltra

Drop the binary somewhere on $PATH (e.g. ~/.local/bin/) for a PostbinUltra command.

#Distro requirements

The release builds target a recent glibc and the X11 / Wayland windowing libraries that ship on every modern desktop distro (Ubuntu 22.04+, Fedora 38+, Debian 12+). Older distros may need to build from source.

#Windows

Download PostbinUltra-<version>-x86_64-pc-windows-msvc.zip from the latest release, unzip it anywhere, and double-click PostbinUltra.exe.

Windows SmartScreen may show "Windows protected your PC" on first launch. Click More info → Run anyway.

#From source (any platform)

Requires Rust 1.85+ (any recent stable will do).

sh
cargo install --git https://github.com/MPJHorner/PostbinUltra postbin-ultra-desktop

The compiled binary lands at ~/.cargo/bin/PostbinUltra. Add ~/.cargo/bin to $PATH if it isn't already and run PostbinUltra from anywhere.

#Verify checksums

Every release archive ships with a matching .sha256:

sh
curl -LO https://github.com/MPJHorner/PostbinUltra/releases/latest/download/PostbinUltra-2.0.0-aarch64-apple-darwin.dmg
curl -LO https://github.com/MPJHorner/PostbinUltra/releases/latest/download/PostbinUltra-2.0.0-aarch64-apple-darwin.dmg.sha256
shasum -a 256 -c PostbinUltra-2.0.0-aarch64-apple-darwin.dmg.sha256

OK means the artefact is the exact one the release workflow built.

#Self-update

Postbin Ultra checks for new releases at startup (unless Skip update check on startup is on in Settings → Advanced). When a newer version exists, the top bar shows a small toast — click it to open the release page in your browser.

You can also check on demand: Settings → Advanced → Check for updates.

#Next steps