diff --git a/lang/chinese.txt b/lang/chinese.txt
index 213a7d58..13ab0869 100644
--- a/lang/chinese.txt
+++ b/lang/chinese.txt
@@ -1287,3 +1287,5 @@ 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/lang/dutch.txt b/lang/dutch.txt
index 578dc88a..9f649a5a 100644
--- a/lang/dutch.txt
+++ b/lang/dutch.txt
@@ -1284,3 +1284,5 @@ 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/lang/englishUK.txt b/lang/englishUK.txt
index 2c165e6b..bcd209bc 100644
--- a/lang/englishUK.txt
+++ b/lang/englishUK.txt
@@ -1288,3 +1288,5 @@ 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/lang/french.txt b/lang/french.txt
index eb5673ed..04a1340a 100644
--- a/lang/french.txt
+++ b/lang/french.txt
@@ -1285,3 +1285,5 @@ 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/lang/german.txt b/lang/german.txt
index d043a12a..714307be 100644
--- a/lang/german.txt
+++ b/lang/german.txt
@@ -1288,3 +1288,5 @@ 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/lang/italian.txt b/lang/italian.txt
index e43ea63c..d21cd96b 100644
--- a/lang/italian.txt
+++ b/lang/italian.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/lang/polish.txt b/lang/polish.txt
index 24354b02..3e15bc6f 100644
--- a/lang/polish.txt
+++ b/lang/polish.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/lang/russian.txt b/lang/russian.txt
index 661e6901..dd25bb12 100644
--- a/lang/russian.txt
+++ b/lang/russian.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"