cargo: when enabled, persist ~/.cargo

hosts/common/programs/assorted.nix

@@ -204,6 +204,8 @@ in
 
     # INDIVIDUAL PACKAGE DEFINITIONS
 
+    cargo.persist.plaintext = [ ".cargo" ];
+
     # creds, but also 200 MB of node modules, etc
     discord.persist.private = [ ".config/discord" ];
 

hosts/common/users/colin.nix

@@ -80,6 +80,8 @@
       # ".rustup"
     ];
 
+    # fs.".cargo".symlink.target = "/tmp/colin-cargo";
+
     # convenience
     fs."knowledge".symlink.target = "private/knowledge";
     fs."nixos".symlink.target = "dev/nixos";