diff --git a/shell.nix b/shell.nix
index cdab39d27..80ad84095 100644
--- a/shell.nix
+++ b/shell.nix
@@ -13,54 +13,49 @@
 #
 # With a specific version of Emacs
 #
-#   nix-shell --argstr emacs 26        # 26.3
 #   nix-shell --argstr emacs 26.3      # 26.3
-#   nix-shell --argstr emacs 27        # 27.1
 #   nix-shell --argstr emacs 27.1      # 27.1
 #   nix-shell --argstr emacs 27.2      # 27.2
-#   nix-shell --argstr emacs 28        # 28.0.50
-#   nix-shell --argstr emacs gcc       # 28.0.50 + native-comp
-#   nix-shell --argstr emacs pgtk+gcc  # 28.0.50 + pgtk + native-comp
+#   nix-shell --argstr emacs 28.1      # 28.1
+#   nix-shell --argstr emacs 28.2      # 28.2
+#   nix-shell --argstr emacs head      # 29.0.50
 #   nix-shell --argstr emacs ci-26.3   # 26.3    (barebones; no GUI)
 #   nix-shell --argstr emacs ci-27.1   # 27.1    (barebones; no GUI)
 #   nix-shell --argstr emacs ci-27.2   # 27.2    (barebones; no GUI)
-#   nix-shell --argstr emacs ci-HEAD   # 28.0.50 (barebones; no GUI)
+#   nix-shell --argstr emacs ci-HEAD   # 29.0.50 (barebones; no GUI)
 
 { pkgs ? import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/22.05.tar.gz")
   {
     overlays = [
       # emacs-overlay: provides EmacsGit, EmacsNativeComp, and EmacsPgtkNativeComp
-      (import (fetchTarball "https://github.com/nix-community/emacs-overlay/archive/ae5528c72a1e1afbbcb7be7e813f4b3598f919ed.tar.gz"))
-      # nix-emacs-ci: provides CI versions of Emacs 26.3, 27.1, 27.2, 28.1, and snapshot
+      (import (fetchTarball "https://github.com/nix-community/emacs-overlay/archive/88e410d7f1ddef554b40f66755626e5c883487d9.tar.gz"))
+      # nix-emacs-ci: provides CI versions of Emacs 26.3, 27.1, 27.2, 28.1, 28.2, and snapshot
       (_: _: (import (fetchTarball "https://github.com/purcell/nix-emacs-ci/archive/master.tar.gz")))
-      # emacs{26,27-{1,2}}
+      # emacs{26,27-{1,2},28-1}
       (_: _: {
         emacs26   = (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/11264a390b197b80edeffac6f20e582f3ea318bd.tar.gz") {}).emacs26;
         emacs27-1 = (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/11264a390b197b80edeffac6f20e582f3ea318bd.tar.gz") {}).emacs;
         emacs27-2 = (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/4c87cb87a2db6b9eb43541c1cf83f2a2f725fa25.tar.gz") {}).emacs;
+        emacs28-1 = (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/54e795706d9fa90004ed1274af639a717f04a2aa.tar.gz") {}).emacs;
       })
     ];
   }
-, emacs ? "28"
+, emacs ? "28.2"
 , emacsdir ? "$(pwd)"
 , doomdir ? ""
 , doomlocaldir ? "$EMACSDIR/.local" }:
 
-let emacsPkg = (if      emacs == "26"       then pkgs.emacs26
-                else if emacs == "26.3"     then pkgs.emacs26
-                else if emacs == "27"       then pkgs.emacs27-2
-                else if emacs == "27.1"     then pkgs.emacs27
+let emacsPkg = (if      emacs == "26.3"     then pkgs.emacs26
+                else if emacs == "27.1"     then pkgs.emacs27-1
                 else if emacs == "27.2"     then pkgs.emacs27-2
-                else if emacs == "28"       then pkgs.emacs
-                else if emacs == "28.1"     then pkgs.emacs
+                else if emacs == "28.1"     then pkgs.emacs28-1
+                else if emacs == "28.2"     then pkgs.emacs
                 else if emacs == "head"     then pkgs.emacsGit
-                else if emacs == "gcc"      then pkgs.emacsNativeComp
-                else if emacs == "pgtk+gcc" then pkgs.emacsPgtkNativeComp
                 else if emacs == "ci-26.3"  then pkgs.emacs-26-3
                 else if emacs == "ci-27.1"  then pkgs.emacs-27-1
                 else if emacs == "ci-27.2"  then pkgs.emacs-27-2
-                else if emacs == "ci-28"    then pkgs.emacs-28-1
                 else if emacs == "ci-28.1"  then pkgs.emacs-28-1
+                else if emacs == "ci-28.2"  then pkgs.emacs-28-2
                 else if emacs == "ci-head"  then pkgs.emacs-snapshot
                 else pkgs.emacs);
 in pkgs.stdenv.mkDerivation {