From 627a3a587b6c88afd6ced1300b56bd4e2b023361 Mon Sep 17 00:00:00 2001
From: Arrowmaster <arrow@arrowmaster.net>
Date: Tue, 27 Jan 2026 20:19:07 -0500
Subject: [PATCH 1/4] run.sh: Add set -e to halt on any unexpected errors

---
 assets/nix/run.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/assets/nix/run.sh b/assets/nix/run.sh
index c840973..b7f9483 100755
--- a/assets/nix/run.sh
+++ b/assets/nix/run.sh
@@ -60,6 +60,7 @@ corlib_dir=""
 
 ################################################################################
 # Everything past this point is the actual script
+set -e
 
 # Special case: program is launched via Steam
 # In that case rerun the script via their bootstrapper to ensure Steam overlay works

From 9a72892f42e80dec129b667bc9c9c628e0cc5e00 Mon Sep 17 00:00:00 2001
From: Arrowmaster <arrow@arrowmaster.net>
Date: Tue, 27 Jan 2026 20:20:27 -0500
Subject: [PATCH 2/4] run.sh: Add error and exit when Windows executable is
 detected

---
 assets/nix/run.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/assets/nix/run.sh b/assets/nix/run.sh
index b7f9483..af57ea2 100755
--- a/assets/nix/run.sh
+++ b/assets/nix/run.sh
@@ -192,6 +192,12 @@ executable_path=$(resolve_executable_path "${executable_path}")
 # Figure out the arch of the executable with file
 file_out="$(LD_PRELOAD="" file -b "${executable_path}")"
 case "${file_out}" in
+    *PE32*)
+        echo "The executable is a Windows executable file. You must use Wine/Proton and BepInEx for Windows with this executable." 1>&2
+        echo "Uninstall BepInEx for *nix and install BepInEx for Windows instead." 1>&2
+        echo "More info: https://docs.bepinex.dev/articles/advanced/steam_interop.html#protonwine" 1>&2
+        exit 1
+    ;;
     *64-bit*)
         arch="x64"
     ;;

From 4613daa94182fc9dbe9c35abb3c04cee9caface3 Mon Sep 17 00:00:00 2001
From: Arrowmaster <arrow@arrowmaster.net>
Date: Tue, 27 Jan 2026 20:23:36 -0500
Subject: [PATCH 3/4] run.sh: Allow the rare usage of Steam launching a shell
 script

---
 assets/nix/run.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/assets/nix/run.sh b/assets/nix/run.sh
index af57ea2..baffb96 100755
--- a/assets/nix/run.sh
+++ b/assets/nix/run.sh
@@ -198,6 +198,11 @@ case "${file_out}" in
         echo "More info: https://docs.bepinex.dev/articles/advanced/steam_interop.html#protonwine" 1>&2
         exit 1
     ;;
+    *shell\ script*)
+        # Fallback for games that launch a shell script from Steam
+        # default to x64, change as needed
+        arch="x64"
+    ;;
     *64-bit*)
         arch="x64"
     ;;

From 6abda2fc58ab16e29428b7101c462177d1d28200 Mon Sep 17 00:00:00 2001
From: Arrowmaster <arrow@arrowmaster.net>
Date: Tue, 27 Jan 2026 20:29:14 -0500
Subject: [PATCH 4/4] run.sh: Change Steam executable detection to a simpler
 check for a file located in the working directory

---
 assets/nix/run.sh | 21 ++++++---------------
 1 file changed, 6 insertions(+), 15 deletions(-)

diff --git a/assets/nix/run.sh b/assets/nix/run.sh
index baffb96..6992417 100755
--- a/assets/nix/run.sh
+++ b/assets/nix/run.sh
@@ -62,24 +62,15 @@ corlib_dir=""
 # Everything past this point is the actual script
 set -e
 
-# Special case: program is launched via Steam
-# In that case rerun the script via their bootstrapper to ensure Steam overlay works
-steam_arg_helper() {
-    if [ "$executable_name" != "" ] && [ "$1" != "${1%"$executable_name"}" ]; then
-        return 0
-    elif [ "$executable_name" = "" ] && [ "$1" != "${1%.x86_64}" ]; then
-        return 0
-    elif [ "$executable_name" = "" ] && [ "$1" != "${1%.x86}" ]; then
-        return 0
-    else
-        return 1
-    fi
-}
+# Special case: program is launched via Steam on Linux
+# In that case rerun the script via their bootstrapper to delay adding Doorstop to LD_PRELOAD
+# This is required until https://github.com/NeighTools/UnityDoorstop/issues/88 is resolved
 for a in "$@"; do
     if [ "$a" = "SteamLaunch" ]; then
         rotated=0; max=$#
         while [ $rotated -lt $max ]; do
-            if steam_arg_helper "$1"; then
+            # Test if argument is prefixed with the value of $PWD
+            if [ "$1" != "${1#"${PWD%/}/"}" ]; then
                 to_rotate=$(($# - rotated))
                 set -- "$@" "$0"
                 while [ $((to_rotate-=1)) -ge 0 ]; do
@@ -93,7 +84,7 @@ for a in "$@"; do
                 rotated=$((rotated+1))
             fi
         done
-        echo "Please set executable_name to a valid name in a text editor" 1>&2
+        echo "Could not determine game executable launched by Steam" 1>&2
         exit 1
     fi
 done