AutoFxEmbed

A tiny Windows background utility that watches your clipboard and rewrites X / Twitter / Bluesky links into their FxEmbed form so Discord, Telegram, etc. embed them properly.

What it does

When the clipboard contains one or more links to one of these services:

Original	Rewritten to
twitter.com	fxtwitter.com
x.com	fixupx.com
bsky.app	fxbsky.app

…everything else in the URL (subdomain, optional port, path, query, fragment) is preserved and the clipboard is updated in place. Already-transformed links, non-matching URLs are left untouched; supported links embedded in prose are rewritten in place.

On Windows it uses the clipboard format listener, so it wakes only on real clipboard changes — no polling, no CPU at idle. On native X11 sessions, Linux uses XFixes selection-owner events plus a slow safety read; Wayland and other environments use a 500 ms fallback poll. A system-tray icon (the FxEmbed logo) provides a right-click menu with Start on startup, a bold About, and Quit.

Install

Install the latest version directly from this repository with Cargo:

cargo install --git https://github.com/crisbbc/AutoFXEmbed.git --locked

Cargo installs the autofxembed executable into its bin directory (usually ~/.cargo/bin on Linux/macOS or %USERPROFILE%\\.cargo\\bin on Windows). Run it from there or make sure that directory is on your PATH.

Build

Requires the Rust toolchain with the MSVC linker (rustup default stable-x86_64-pc-windows-msvc).

cargo build --release

The binary is target/release/autofxembed.exe.

Building embeds the FxEmbed icon as a Windows resource (build.rs via embed-resource, which requires rc.exe from the Windows SDK — included with Visual Studio Build Tools).

Run

Double-click autofxembed.exe (no console window appears; a tray icon does). On Linux, a missing D-Bus StatusNotifier tray is treated as a startup failure rather than leaving an unmanageable background process running. Copy a tweet/X/Bluesky link; paste it anywhere — it's already the FxEmbed form. Right-click the tray icon for:

• Start on startup — checked when AutoFxEmbed will launch at Windows logon (toggles a value under HKCU\Software\Microsoft\Windows\CurrentVersion\Run).
• About — shows a small message box.
• Quit — exits.

Tests

cargo fmt -- --check
cargo test
cargo clippy --all-targets --all-features -- -D warnings

(Unit tests cover the pure URL-rewrite logic; platform integration remains manual.)