diff --git a/nix/configurations/vanadium.nix b/nix/configurations/vanadium.nix
index 81e36471..19adae7e 100644
--- a/nix/configurations/vanadium.nix
+++ b/nix/configurations/vanadium.nix
@@ -42,8 +42,9 @@ in
             disko
             nur
             wired-notify
-            packages
+            emacs28 # removed, but I need it for PLFA!
 
+            packages
             (import ./vanadium/nixos/overlay.nix)
           ];
 
diff --git a/nix/configurations/vanadium/home/programs.nix b/nix/configurations/vanadium/home/programs.nix
index 57fdc671..f8f4aa02 100644
--- a/nix/configurations/vanadium/home/programs.nix
+++ b/nix/configurations/vanadium/home/programs.nix
@@ -54,7 +54,10 @@ in {
         neovim.enable = true;
         neovim.defaultEditor = true;
 
-        emacs.enable = true;
+        emacs = {
+          enable = true;
+          package = pkgs.emacs28;
+        };
 
         fish.enable = true;
         starship.enable = true;
diff --git a/nix/overlays/by-name/emacs28/overlay.nix b/nix/overlays/by-name/emacs28/overlay.nix
new file mode 100644
index 00000000..d00933f8
--- /dev/null
+++ b/nix/overlays/by-name/emacs28/overlay.nix
@@ -0,0 +1,8 @@
+{sources}:
+#
+_: _: {
+  emacs28 = let
+    pkgs = import sources.pin-emacs28 {};
+  in
+    pkgs.emacs;
+}
diff --git a/nix/sources.json b/nix/sources.json
index 5280ac24..992e8cfb 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -133,6 +133,18 @@
         "url": "https://github.com/nix-community/nur/archive/6b8339ef517be0618224555960e1693156de1bf9.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
+    "pin-emacs28": {
+        "branch": "master",
+        "description": "Nix Packages collection & NixOS",
+        "homepage": "",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "93c121f6888986f9148a33afd39d714f4b2ca98c",
+        "sha256": "198p4lv3zqw3s6j3yflgic0jxig4y0vsb1k8433jv227ks89kqdg",
+        "type": "tarball",
+        "url": "https://github.com/nixos/nixpkgs/archive/93c121f6888986f9148a33afd39d714f4b2ca98c.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    },
     "pin-fourmolu": {
         "branch": "haskell-updates",
         "description": "Nix Packages collection & NixOS",