diff --git a/src/archs.nix b/src/archs.nix
index 3c33a92..c682c32 100644
--- a/src/archs.nix
+++ b/src/archs.nix
@@ -16,8 +16,6 @@
 
   arm64 = {
     penguinName = "aarch64";
-    # "arm64" is the legacy dylib/arch dir name the rest of penguin still uses.
-    compatNames = [ "arm64" ];
     crossSystem = {
       config = "aarch64-linux-musl";
     };
@@ -59,8 +57,6 @@
 
   ppc64 = {
     penguinName = "powerpc64";
-    # "ppc64" is the legacy dylib/arch dir name the rest of penguin still uses.
-    compatNames = [ "ppc64" ];
     crossSystem = {
       config = "powerpc64-linux-musl";
       gcc.abi = "elfv2";
@@ -69,8 +65,7 @@
 
   ppc64el = {
     penguinName = "powerpc64le";
-    # "ppc64el" is the legacy dylib/arch dir name the rest of penguin uses.
-    compatNames = [ "powerpc64el" "ppc64el" ];
+    compatNames = [ "powerpc64el" ];
     crossSystem = {
       config = "powerpc64le-linux-musl";
     };
@@ -85,8 +80,6 @@
 
   loongarch = {
     penguinName = "loongarch64";
-    # "loongarch" is the legacy dylib/arch dir name the rest of penguin uses.
-    compatNames = [ "loongarch" ];
     crossSystem = {
       config = "loongarch64-linux-musl";
     };