diff --git a/frontend/static/layouts/_list.json b/frontend/static/layouts/_list.json
index ffe86f7a6..ac113dcfb 100644
--- a/frontend/static/layouts/_list.json
+++ b/frontend/static/layouts/_list.json
@@ -517,6 +517,17 @@
       "row5": [" "]
   }
   },
+  "handsdown_promethium": {
+    "keymapShowTopRow": false,
+    "type": "ansi",
+    "keys": {
+      "row1": ["`~", "1!", "2@", "3#", "4$", "5%", "6^", "7&", "8*", "9(", "0)", "-_", "=+"],
+      "row2": ["fF", "pP", "dD", "lL", "xX", ";:", "uU", "oO", "yY", "bB", "zZ", "]}", "\\|"],
+      "row3": ["sS", "nN", "tT", "hH", "kK", ",<", "aA", "eE", "iI", "cC", "qQ"],
+      "row4": ["vV", "wW", "gG", "mM", "jJ", "-_", ".>", "'\"", "=+", "/?"],
+      "row5": ["rR", " "]
+    }
+  },
   "typehack": {
     "keymapShowTopRow": false,
     "type": "ansi",