This fixes the build

diff --git a/pkgs/by-name/gn/gnome-user-share/package.nix b/pkgs/by-name/gn/gnome-user-share/package.nix
index 130c293073eb..b3fd4b3b0de5 100644
--- a/pkgs/by-name/gn/gnome-user-share/package.nix
+++ b/pkgs/by-name/gn/gnome-user-share/package.nix
@@ -74,6 +74,13 @@ stdenv.mkDerivation (finalAttrs: {
     wrapGAppsNoGuiHook
   ];
 
+  postPatch = ''
+    substituteInPlace src/meson.build \
+      --replace-fail 'cargo_env = [' "cargo_env = [ 'CARGO_HOME=/build/.cargo'" \
+      --replace-fail "cargo_options += [ '--target-dir', meson.project_build_root() / 'src' ]" "cargo_options += [ '--target-dir', meson.project_build_root() / 'src', '--target=${stdenv.hostPlatform.rust.rustcTarget}' ]" \
+      --replace-fail "'cp', 'src' / rust_target / meson.project_name(), '@OUTPUT@'," "'cp', 'src' / '${stdenv.hostPlatform.rust.cargoShortTarget}' / rust_target / meson.project_name(), '@OUTPUT@',"
+  '';
+
   buildInputs = [
     glib
   ];

diff --git a/pkgs/by-name/gn/gnome-user-share/package.nix b/pkgs/by-name/gn/gnome-user-share/package.nix
index 130c293073eb..ca1cb2079e8c 100644
--- a/pkgs/by-name/gn/gnome-user-share/package.nix
+++ b/pkgs/by-name/gn/gnome-user-share/package.nix
@@ -74,6 +74,12 @@ stdenv.mkDerivation (finalAttrs: {
     wrapGAppsNoGuiHook
   ];
 
+  postPatch = lib.optionalString (stdenv.buildPlatform != stdenv.hostPlatform) ''
+    substituteInPlace src/meson.build \
+      --replace-fail "cargo_options += [ '--target-dir', meson.project_build_root() / 'src' ]" "cargo_options += [ '--target-dir', meson.project_build_root() / 'src', '--target=${stdenv.hostPlatform.rust.rustcTarget}' ]" \
+      --replace-fail "'cp', 'src' / rust_target / meson.project_name(), '@OUTPUT@'," "'cp', 'src' / '${stdenv.hostPlatform.rust.cargoShortTarget}' / rust_target / meson.project_name(), '@OUTPUT@',"
+  '';
+
   buildInputs = [
     glib
   ];

warning: Git tree '/home/quadradical/.config/nixos' is dirty
error: interrupted by the user
quadradical@quadraticpc ~/.c/nixos (main) [1]> nix build .#nixosConfigurations.quadphone.config.system.build.image --show-trace
warning: Git tree '/home/quadradical/.config/nixos' is dirty
[12/1/645 built, 0.0 MiB DL] building xcb-util-aarch64-unknown-linux-gnu-0.4.1 (configurePhase): checking if aarch64-unknown-linux-gnu
error: builder for '/nix/store/wvzrj1ic2vw48hdlhcv9lfgd2fh4g83a-fromYAML-aarch64-unknown-linux-gnu.drv' failed with exit code 126;
       last 2 log lines:
       > Running phase: buildPhase
       > /nix/store/sxsq73gxywsm7kahl43w109cx3j9dbnx-stdenv-linux/setup: line 1768: /nix/store/7c1dsac2g3r9h5lb0w5v726qda8p32k2-yaml2json-aarch64-unknown-linux-gnu-1.3.5/bin/yaml2json: cannot execute binary file: Exec format error
       For full logs, run 'nix log /nix/store/wvzrj1ic2vw48hdlhcv9lfgd2fh4g83a-fromYAML-aarch64-unknown-linux-gnu.drv'.
error: 1 dependencies of derivation '/nix/store/f5gp079z0v7wh4xkbw173589b43fhq70-base16-nix-parse-check-aarch64-unknown-linux-gnu.drv' failed to build
error: 1 dependencies of derivation '/nix/store/fr66xjjz423w19pbp3vqh1lq852kwm4g-base16-nord.fish-aarch64-unknown-linux-gnu.drv' failed to build
error: 1 dependencies of derivation '/nix/store/h4yp1xwp3gmrnf4c4ckvxcn1jgvg2sc3-etc-fish-config.fish.drv' failed to build

error: builder for '/nix/store/ksmcjf0kssbpz1axf3v8wvz5yjxigj19-twitter-color-emoji-aarch64-unknown-linux-gnu-15.0.2.drv' failed with exit code 2;
       last 25 log lines:
       > zopflipng -y "build/quantized_pngs/emoji_u3030.png" "build/compressed_pngs/emoji_u3030.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u303d.png" "build/compressed_pngs/emoji_u303d.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u30_20e3.png" "build/compressed_pngs/emoji_u30_20e3.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u31_20e3.png" "build/compressed_pngs/emoji_u31_20e3.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u3297.png" "build/compressed_pngs/emoji_u3297.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u3299.png" "build/compressed_pngs/emoji_u3299.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u32_20e3.png" "build/compressed_pngs/emoji_u32_20e3.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u33_20e3.png" "build/compressed_pngs/emoji_u33_20e3.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u34_20e3.png" "build/compressed_pngs/emoji_u34_20e3.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u35_20e3.png" "build/compressed_pngs/emoji_u35_20e3.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u36_20e3.png" "build/compressed_pngs/emoji_u36_20e3.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u37_20e3.png" "build/compressed_pngs/emoji_u37_20e3.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u38_20e3.png" "build/compressed_pngs/emoji_u38_20e3.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_u39_20e3.png" "build/compressed_pngs/emoji_u39_20e3.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_ua9.png" "build/compressed_pngs/emoji_ua9.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_uae.png" "build/compressed_pngs/emoji_uae.png" 1> /dev/null 2>&1
       > zopflipng -y "build/quantized_pngs/emoji_ue50a.png" "build/compressed_pngs/emoji_ue50a.png" 1> /dev/null 2>&1
       > python3 add_glyphs.py -f "TwitterColorEmoji.tmpl.ttx.tmpl" -o "TwitterColorEmoji.tmpl.ttx" -d "build/compressed_pngs" -a emoji_aliases.txt
       > python3 add_glyphs.py --add_cmap4 --add_glyf -f "TwitterColorEmoji.tmpl.ttx.tmpl" -o "NotoColorEmoji_WindowsCompatible.tmpl.ttx" -d "build/compressed_pngs" -a emoji_aliases.txt
       > /nix/store/gkwbw9nzbkbz298njbn3577zmrnglbbi-bash-5.3p0/bin/bash: line 1: /nix/store/ds6al5mill8ay2ain1kv5m13sfyjsdr1-python3-aarch64-unknown-linux-gnu-3.13.5/bin/python3: cannot execute binary file: Exec format error
       > /nix/store/gkwbw9nzbkbz298njbn3577zmrnglbbi-bash-5.3p0/bin/bash: line 1: /nix/store/ds6al5mill8ay2ain1kv5m13sfyjsdr1-python3-aarch64-unknown-linux-gnu-3.13.5/bin/python3: cannot execute binary file: Exec format error
       > make: *** [Makefile:201: TwitterColorEmoji.tmpl.ttx] Error 126
       > make: *** Waiting for unfinished jobs....
       > make: *** [Makefile:204: NotoColorEmoji_WindowsCompatible.tmpl.ttx] Error 126
       > rm build/emoji/emoji_ue50a.png
       For full logs, run 'nix log /nix/store/ksmcjf0kssbpz1axf3v8wvz5yjxigj19-twitter-color-emoji-aarch64-unknown-linux-gnu-15.0.2.drv'.