diff --git a/flake.lock b/flake.lock
index 0bce6f1..2136ea8 100644
--- a/flake.lock
+++ b/flake.lock
@@ -544,17 +544,17 @@
     },
     "unstable": {
       "locked": {
-        "lastModified": 1633971123,
-        "narHash": "sha256-WmI4NbH1IPGFWVkuBkKoYgOnxgwSfWDgdZplJlQ93vA=",
+        "lastModified": 1634229982,
+        "narHash": "sha256-O4IfSHZ8+j35Gfp7/Gdhx3tWlfEDPXboUd8m1wzT1CQ=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "e4ef597edfd8a0ba5f12362932fc9b1dd01a0aef",
+        "rev": "30aeeaded47d4e246941147acaa357d1605ad486",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-unstable",
         "repo": "nixpkgs",
+        "rev": "30aeeaded47d4e246941147acaa357d1605ad486",
         "type": "github"
       }
     }
diff --git a/flake.nix b/flake.nix
index f177b97..372b10b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,7 +4,7 @@
   inputs =
     {
       stable.url = "github:nixos/nixpkgs/release-21.05";
-      unstable.url = "github:nixos/nixpkgs/nixos-unstable";
+      unstable.url = "github:nixos/nixpkgs/30aeeaded47d4e246941147acaa357d1605ad486";
 
       nur.url = "github:nix-community/NUR";
 
diff --git a/hosts/pc/configuration.nix b/hosts/pc/configuration.nix
index 66f6e6d..9cee61d 100644
--- a/hosts/pc/configuration.nix
+++ b/hosts/pc/configuration.nix
@@ -1,11 +1,11 @@
 { config, lib, pkgs, profiles, ... }:
 
 {
-  imports = with profiles; [ mount-nas sshd dbus avahi printing xdg ];
+  imports = with profiles; [ mount-nas sshd dbus avahi printing xdg docker ];
 
   boot = {
     initrd.availableKernelModules = [ "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
-    initrd.kernelModules = [];
+    initrd.kernelModules = [ ];
     kernelModules = [ "kvm-intel" ];
     extraModulePackages = with config.boot.kernelPackages; [
       v4l2loopback
@@ -41,7 +41,7 @@
     };
 
   swapDevices =
-    [ { device = "/dev/disk/by-label/swap"; } ];
+    [{ device = "/dev/disk/by-label/swap"; }];
 
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
 }
diff --git a/profiles/docker/default.nix b/profiles/docker/default.nix
new file mode 100644
index 0000000..a878015
--- /dev/null
+++ b/profiles/docker/default.nix
@@ -0,0 +1,3 @@
+{
+  virtualisation.docker.enable = true;
+}
diff --git a/users/ccr/default.nix b/users/ccr/default.nix
index 0f7e56a..1004edc 100644
--- a/users/ccr/default.nix
+++ b/users/ccr/default.nix
@@ -13,6 +13,7 @@
       gsettings-desktop-schemas
       lxappearance
       yarn
+      yarn2nix
       texlive.combined.scheme-full
     ];
   };
diff --git a/users/profiles/emacs/emacs.d/config/nix.el b/users/profiles/emacs/emacs.d/config/nix.el
index 957d891..4f6d444 100644
--- a/users/profiles/emacs/emacs.d/config/nix.el
+++ b/users/profiles/emacs/emacs.d/config/nix.el
@@ -1,8 +1,7 @@
 (use-package nix-mode
   :mode "\\.nix\\'"
-  ;:hook 
-  ;(before-save . lsp-format-buffer))
-)
+  :hook 
+  (before-save . lsp-format-buffer))
 (require 'sudo-utils)
 
 (defun nixos-rebuild-switch ()
diff --git a/users/profiles/sway/default.nix b/users/profiles/sway/default.nix
index 0ec1529..b68372d 100644
--- a/users/profiles/sway/default.nix
+++ b/users/profiles/sway/default.nix
@@ -50,6 +50,7 @@
           keybindings = lib.mkOptionDefault {
             "${modifier}+x" = "exec ${pkgs.customEmacs}/bin/emacs";
             "${modifier}+b" = "exec ${pkgs.firefox}/bin/firefox";
+            "${modifier}+s" = "exec \'file=\"~/shots/\$(date --iso-8601=seconds).png\"; ${pkgs.grim}/bin/grim -t png -g \"\$(${pkgs.slurp}/bin/slurp)\" \$file; wl-copy -t image/png < \$file\'";
           };
         };
         extraConfig = ''