diff --git a/lang/english.txt b/lang/english.txt
index 4b2bf55f..bdbef3ad 100644
--- a/lang/english.txt
+++ b/lang/english.txt
@@ -1286,3 +1286,5 @@ DESC_VORTEXDEVICESCALEFACTOR="uses the --device-scale-factor flag to set the Vor
 GUI_STLSHMLOG="Current SteamTinkerLaunch log file"
 GUI_STLSHMDIR="Current session logging directory"
 GUI_STLPERGAMELOGSDIR="Per-game log files"
+GUI_CUSTOMCMD_USESLR="Use Steam Linux Runtime with Custom Command"
+DESC_CUSTOMCMD_USESLR="runs Custom Commands in the Steam Linux Runtime container that games use to improve compatibility, particularly for commands running via Proton (but it works for native commands as well). This option might get in the way of inter-process communication (i.e. an app that looks for a game process) and may be unnecessary for Linux shell scripts"
diff --git a/steamtinkerlaunch b/steamtinkerlaunch
index 72e8b955..34b5d02f 100755
--- a/steamtinkerlaunch
+++ b/steamtinkerlaunch
@@ -3210,6 +3210,7 @@ function setDefaultCfgValues {
 		if [ -z "$ONLY_CUSTOMCMD" ]						; then	ONLY_CUSTOMCMD="0";	fi
 		if [ -z "$FORK_CUSTOMCMD" ]						; then	FORK_CUSTOMCMD="0";	fi
 		if [ -z "$EXTPROGS_CUSTOMCMD" ]					; then  EXTPROGS_CUSTOMCMD="0"; fi
+		if [ -z "$CUSTOMCMD_USESLR" ]					; then  CUSTOMCMD_USESLR="1"; fi
 		if [ -z "$CUSTOMCMDFORCEWIN" ]					; then  CUSTOMCMDFORCEWIN="0"; fi
 		if [ -z "$WAITFORCUSTOMCMD" ]					; then	WAITFORCUSTOMCMD="0"; fi
 		if [ -z "$INJECT_CUSTOMCMD" ]					; then	INJECT_CUSTOMCMD="0"; fi
@@ -3806,6 +3807,8 @@ function saveCfg {
 			echo "FORK_CUSTOMCMD=\"$FORK_CUSTOMCMD\""
 			echo "## $DESC_EXTPROGS_CUSTOMCMD"
 			echo "EXTPROGS_CUSTOMCMD=\"$EXTPROGS_CUSTOMCMD\""
+			echo "## $DESC_CUSTOMCMD_USESLR"
+			echo "CUSTOMCMD_USESLR=\"$CUSTOMCMD_USESLR\""
 			echo "## $DESC_CUSTOMCMD_FORCEWIN"
 			echo "CUSTOMCMDFORCEWIN=\"$CUSTOMCMDFORCEWIN\""
 			echo "## $DESC_WAITFORCUSTOMCMD"
@@ -5678,6 +5681,7 @@ function AllSettingsEntriesDummyFunction {
 --field="     $GUI_CUSTOMCMD_ARGS!$DESC_CUSTOMCMD_ARGS ('CUSTOMCMD_ARGS')" "$( printf "%s" "${CUSTOMCMD_ARGS/#-/ -}" )" `#CAT_Misc` `#MENU_GAME` \
 --field="     $GUI_FORK_CUSTOMCMD!$DESC_FORK_CUSTOMCMD ('FORK_CUSTOMCMD')":CHK "${FORK_CUSTOMCMD/#-/ -}" `#CAT_Misc` `#SUB_Checkbox` `#MENU_GAME` \
 --field="     $GUI_EXTPROGS_CUSTOMCMD!$DESC_EXTPROGS_CUSTOMCMD ('EXTPROGS_CUSTOMCMD')":CHK "${EXTPROGS_CUSTOMCMD/#-/ -}" `#CAT_Misc` `#SUB_Checkbox` `#MENU_GAME` \
+--field="     $GUI_CUSTOMCMD_USESLR!$DESC_CUSTOMCMD_USESLR ('CUSTOMCMD_USESLR')":CHK "${CUSTOMCMD_USESLR/#-/ -}" `#CAT_Misc` `#SUB_Checkbox` `#MENU_GAME` \
 --field="     $GUI_ONLY_CUSTOMCMD!$DESC_ONLY_CUSTOMCMD ('ONLY_CUSTOMCMD')":CHK "${ONLY_CUSTOMCMD/#-/ -}" `#CAT_Misc` `#SUB_Checkbox` `#MENU_GAME` \
 --field="     $GUI_CUSTOMCMD_FORCEWIN!$DESC_CUSTOMCMD_FORCEWIN ('CUSTOMCMDFORCEWIN')":CHK "${CUSTOMCMDFORCEWIN/#-/ -}" `#CAT_Misc` `#SUB_Checkbox` `#MENU_GAME` \
 --field="     $GUI_WAITFORCUSTOMCMD!$DESC_WAITFORCUSTOMCMD ('WAITFORCUSTOMCMD')":NUM "${WAITFORCUSTOMCMD/#-/ -}" `#CAT_Misc` `#SUB_Checkbox` `#MENU_GAME` \
@@ -12703,7 +12707,7 @@ function launchCustomProg {
 	fi
 
 	# TODO replace with GUI option
-	__DEBUG_CUSTCMD_SLR=1
+	# __DEBUG_CUSTCMD_SLR=1
 
 	if [ -z "$CUSTOMCMD" ] || [[ "$CUSTOMCMD" =~ ${DUMMYBIN}$ ]]; then
 		writelog "INFO" "${FUNCNAME[0]} - CUSTOMCMD variable is empty - opening file requester"
@@ -12838,24 +12842,24 @@ function launchCustomProg {
 				writelog "INFO" "${FUNCNAME[0]} - '$CUSTCOM' seems to be a MS console program - starting using '$WICO'"
 				if [ "$FORK_CUSTOMCMD" -eq 1 ]; then
 					writelog "INFO" "${FUNCNAME[0]} - FORK_CUSTOMCMD is set to 1 - forking the custom program in background and continue"
-					extProtonRun "FC" "$LACO" "$CUSTOMCMD_ARGS" "" "${__DEBUG_CUSTCMD_SLR}"
+					extProtonRun "FC" "$LACO" "$CUSTOMCMD_ARGS" "" "${CUSTOMCMD_USESLR}"
 				elif [ "$ONLY_CUSTOMCMD" -eq 1 ] && [ -n "${FINALOUTCMD[*]}" ]; then
 					writelog "INFO" "${FUNCNAME[0]} - ONLY_CUSTOMCMD is set to 1 and we have some arguments in FINALOUTCMD - passing to extProtonRun to build a valid start command"	
-					extProtonRun "R" "$LACO" "$CUSTOMCMD_ARGS" "$FINALOUTCMD" "${__DEBUG_CUSTCMD_SLR}"  # extProtonRun will handle adding the FINALOUTCMD args to
+					extProtonRun "R" "$LACO" "$CUSTOMCMD_ARGS" "$FINALOUTCMD" "${CUSTOMCMD_USESLR}"  # extProtonRun will handle adding the FINALOUTCMD args to
 				else
-					extProtonRun "RC" "$LACO" "$CUSTOMCMD_ARGS" "" "${__DEBUG_CUSTCMD_SLR}"
+					extProtonRun "RC" "$LACO" "$CUSTOMCMD_ARGS" "" "${CUSTOMCMD_USESLR}"
 				fi
 			else  # GUI Wine/Proton program
 				writelog "INFO" "${FUNCNAME[0]} - '$CUSTCOM' seems to be a MS gui program - starting regularly"
 
 				if [ "$FORK_CUSTOMCMD" -eq 1 ]; then
 					writelog "INFO" "${FUNCNAME[0]} - FORK_CUSTOMCMD is set to 1 - forking the custom program in background and continue"
-					extProtonRun "F" "$LACO" "$CUSTOMCMD_ARGS" "" "${__DEBUG_CUSTCMD_SLR}"
+					extProtonRun "F" "$LACO" "$CUSTOMCMD_ARGS" "" "${CUSTOMCMD_USESLR}"
 				elif [ "$ONLY_CUSTOMCMD" -eq 1 ] && [ -n "$FINALOUTCMD" ]; then
 					writelog "INFO" "${FUNCNAME[0]} - ONLY_CUSTOMCMD is set to 1 and we have some arguments in FINALOUTCMD - passing to extProtonRun to build a valid start command"
-					extProtonRun "R" "$LACO" "$CUSTOMCMD_ARGS" "${FINALOUTCMD[*]}" "${__DEBUG_CUSTCMD_SLR}""${__DEBUG_CUSTCMD_SLR}"  # extProtonRun will handle adding the FINALOUTCMD args
+					extProtonRun "R" "$LACO" "$CUSTOMCMD_ARGS" "${FINALOUTCMD[*]}" "${CUSTOMCMD_USESLR}" "${CUSTOMCMD_USESLR}"  # extProtonRun will handle adding the FINALOUTCMD args
 				else
-					extProtonRun "R" "$LACO" "$CUSTOMCMD_ARGS" "" "${__DEBUG_CUSTCMD_SLR}"
+					extProtonRun "R" "$LACO" "$CUSTOMCMD_ARGS" "" "${CUSTOMCMD_USESLR}"
 				fi
 			fi
 		else  # Native custom command
@@ -12883,7 +12887,7 @@ function launchCustomProg {
 			# TODO set native Linux SLR here and append to RUNEXTPROGRAMARGS
 			# * Do we need to add a "force native" var to setSLRReap? Game could be Proton but customcmd could be native, need to handle both
 			# TODO should respect selected SLR once #1087 is implemented
-			if [ "$__DEBUG_CUSTCMD_SLR" -eq 1 ]; then
+			if [ "$CUSTOMCMD_USESLR" -eq 1 ]; then
 				unset "${SLRCMD[@]}"
 
 				writelog "INFO" "${FUNCNAME[0]} - Steam Linux Runtime enabled, attempting to fetch Steam Linux Runtime for native Custom Command"
@@ -12910,7 +12914,7 @@ function launchCustomProg {
 				fi
 
 				unset "${SLRCMD[@]}"
-			elif [ -z "${SLRCMD[*]}" ] && [ "$__DEBUG_CUSTCMD_SLR" -eq 1 ]; then
+			elif [ -z "${SLRCMD[*]}" ] && [ "$CUSTOMCMD_USESLR" -eq 1 ]; then
 				writelog "WARN" "${FUNCNAME[0]} - Attempted to fetch Steam Linux Runtime but failed to find one!"
 			fi