From 31ea9f4ab201af34fb4063d3bf5fab32c68dd16a Mon Sep 17 00:00:00 2001
From: Sam Pickering <83871143+samhpickering@users.noreply.github.com>
Date: Sat, 14 Feb 2026 19:36:00 +0000
Subject: [PATCH] fastmail-desktop: fix URL scheme handling on Linux

The Fastmail desktop app is registered as a scheme handler for
fastmail://. The %U in the original Exec command is necessary to pass
handled URLs to the app.
---
 pkgs/by-name/fa/fastmail-desktop/linux.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/by-name/fa/fastmail-desktop/linux.nix b/pkgs/by-name/fa/fastmail-desktop/linux.nix
index ca24c16f02d2..aab967ce85d5 100644
--- a/pkgs/by-name/fa/fastmail-desktop/linux.nix
+++ b/pkgs/by-name/fa/fastmail-desktop/linux.nix
@@ -57,7 +57,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
 
     install -D "${appimageContents}/production.desktop" "$out/share/applications/fastmail.desktop"
     substituteInPlace "$out/share/applications/fastmail.desktop" \
-      --replace-fail "Exec=AppRun --no-sandbox %U" "Exec=fastmail" \
+      --replace-fail "Exec=AppRun --no-sandbox %U" "Exec=fastmail %U" \
       --replace-fail "Icon=production" "Icon=fastmail" \
 
     for res in 16 24 32 48 64 128 256 512 1024; do