diff --git a/home-manager/home.nix b/home-manager/home.nix
index 33b3def..1bc36a5 100644
--- a/home-manager/home.nix
+++ b/home-manager/home.nix
@@ -2,7 +2,7 @@
 let
   y-firefox = pkgs.wrapFirefox pkgs.latest.firefox-beta-bin.unwrapped {
     forceWayland = true;
-    browserName = "firefox";
+    applicationName = "firefox";
   };
   thefuck-alias = shell: pkgs.runCommand "thefuck-alias" {
     TF_SHELL = shell;
@@ -178,6 +178,11 @@ in {
           user = "yorick.van.pelt";
           port = 4222;
         };
+        rpibuild4 = {
+          hostname = "rpibuild4.lumi.guide";
+          user = "yorick.van.pelt";
+          port = 4222;
+        };
         styx = lumigod "10.110.0.1";
         "*.lumi.guide" = { user = "yorick.van.pelt"; };
         zeus = lumigod "zeus.lumi.guide";
diff --git a/nix/sources.json b/nix/sources.json
index 2086561..8aa56a8 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -5,10 +5,10 @@
         "homepage": "",
         "owner": "nix-community",
         "repo": "emacs-overlay",
-        "rev": "50f1ef189623aad54410bc935e6f4b4a3aed98cf",
-        "sha256": "0wyn326n7q0g6xdqpw3ch5n8fv77w185nvxvyj7cblbim0ma3h1f",
+        "rev": "8a47765478628f684b09d7f7aa5960e697309c74",
+        "sha256": "1jz065nsyfkdn8mksh5vmfirp7n1dlhg10h8zzfgpfij1vya1c2l",
         "type": "tarball",
-        "url": "https://github.com/nix-community/emacs-overlay/archive/50f1ef189623aad54410bc935e6f4b4a3aed98cf.tar.gz",
+        "url": "https://github.com/nix-community/emacs-overlay/archive/8a47765478628f684b09d7f7aa5960e697309c74.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "home-manager": {
@@ -17,10 +17,10 @@
         "homepage": "https://nix-community.github.io/home-manager/",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "59be1f4983ee3689de3172716a6c7e95a6a37bb7",
-        "sha256": "1q9q5aagmhmnjdx0smf7x5jw7m8fp0vxb948xn9946vkxxya7d4c",
+        "rev": "60ebc273c92edae796931649e83bf753e72b3ef4",
+        "sha256": "1kxd70mrr295pd355g4s19jkiz5gh7nhkbis987qrx5ircpmpjqm",
         "type": "tarball",
-        "url": "https://github.com/nix-community/home-manager/archive/59be1f4983ee3689de3172716a6c7e95a6a37bb7.tar.gz",
+        "url": "https://github.com/nix-community/home-manager/archive/60ebc273c92edae796931649e83bf753e72b3ef4.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "niv": {
@@ -29,10 +29,10 @@
         "homepage": "https://github.com/nmattia/niv",
         "owner": "nmattia",
         "repo": "niv",
-        "rev": "e0ca65c81a2d7a4d82a189f1e23a48d59ad42070",
-        "sha256": "1pq9nh1d8nn3xvbdny8fafzw87mj7gsmp6pxkdl65w2g18rmcmzx",
+        "rev": "65a61b147f307d24bfd0a5cd56ce7d7b7cc61d2e",
+        "sha256": "17mirpsx5wyw262fpsd6n6m47jcgw8k2bwcp1iwdnrlzy4dhcgqh",
         "type": "tarball",
-        "url": "https://github.com/nmattia/niv/archive/e0ca65c81a2d7a4d82a189f1e23a48d59ad42070.tar.gz",
+        "url": "https://github.com/nmattia/niv/archive/65a61b147f307d24bfd0a5cd56ce7d7b7cc61d2e.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixos-hardware": {
@@ -41,10 +41,10 @@
         "homepage": "",
         "owner": "nixos",
         "repo": "nixos-hardware",
-        "rev": "8296b88560d8ac07a885452e094cd454de90ea9b",
-        "sha256": "07s1p1qj5knh71lq3nzkxs3mhh5n9dbf6qi87dhkkngp85fjv9il",
+        "rev": "0a8b8054c9920368a3c15e6d766188fdf04b736f",
+        "sha256": "1vg43gvqav4p31awk82ax5710cvp0lizqbhgmg3j1qvdspxv7nj8",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixos-hardware/archive/8296b88560d8ac07a885452e094cd454de90ea9b.tar.gz",
+        "url": "https://github.com/nixos/nixos-hardware/archive/0a8b8054c9920368a3c15e6d766188fdf04b736f.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixos-mailserver": {
@@ -61,10 +61,10 @@
         "homepage": "https://github.com/NixOS/nixpkgs",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "439b1605227b8adb1357b55ce8529d541abbe9eb",
-        "sha256": "1jmlia9670lq89ic241zvif5q68qsqhqzm68pbdacxjmdrr0ahqf",
+        "rev": "14aef06d9b3ad1d07626bdbb16083b83f92dc6c1",
+        "sha256": "1rfsfaaa1lbrvhdpdnqg4fg5v7bnal1s8xd1sm66pl2vh0dhjzyg",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/439b1605227b8adb1357b55ce8529d541abbe9eb.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/14aef06d9b3ad1d07626bdbb16083b83f92dc6c1.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs-mozilla": {
@@ -73,22 +73,22 @@
         "homepage": "",
         "owner": "mozilla",
         "repo": "nixpkgs-mozilla",
-        "rev": "b1001ed670666ca4ce1c1b064481f88694315c1d",
-        "sha256": "1hpig8z4pzdwc2vazr6hg7qyxllbgznsaivaigjnmrdszlxz55zz",
+        "rev": "0510159186dd2ef46e5464484fbdf119393afa58",
+        "sha256": "1c6r5ldkh71v6acsfhni7f9sxvi7xrqzshcwd8w0hl2rrqyzi58w",
         "type": "tarball",
-        "url": "https://github.com/mozilla/nixpkgs-mozilla/archive/b1001ed670666ca4ce1c1b064481f88694315c1d.tar.gz",
+        "url": "https://github.com/mozilla/nixpkgs-mozilla/archive/0510159186dd2ef46e5464484fbdf119393afa58.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs-wayland": {
         "branch": "master",
         "description": "Automated, pre-built packages for Wayland (sway/wlroots) tools for NixOS.",
         "homepage": "",
-        "owner": "colemickens",
+        "owner": "nix-community",
         "repo": "nixpkgs-wayland",
-        "rev": "4d0b4b2d0687221ffcb0c1954688607591d4fd27",
-        "sha256": "1p5qjnv2gsnvlj7hf6fxhz7rfp565zwqyyglwk7xng87x1vqh2fm",
+        "rev": "020bba7daedf53bea157e44fe989831244cf6bd9",
+        "sha256": "1rhvmyyzl82vqcdy6hhm4qm3im2508nqlvx9xizaaxpnzqzzp8rh",
         "type": "tarball",
-        "url": "https://github.com/colemickens/nixpkgs-wayland/archive/4d0b4b2d0687221ffcb0c1954688607591d4fd27.tar.gz",
+        "url": "https://github.com/nix-community/nixpkgs-wayland/archive/020bba7daedf53bea157e44fe989831244cf6bd9.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }
diff --git a/overlays.nix b/overlays.nix
index af0da1b..be76006 100644
--- a/overlays.nix
+++ b/overlays.nix
@@ -1,6 +1,6 @@
 let sources = import ./nix/sources.nix;
 in [
-  (import sources.nixpkgs-wayland)
+  (import "${sources.nixpkgs-wayland}/overlay.nix")
   (import sources.nixpkgs-mozilla)
   (import sources.emacs-overlay)
   (import ./pkgs)
diff --git a/pkgs/envs.nix b/pkgs/envs.nix
index 8bfa399..8570bee 100644
--- a/pkgs/envs.nix
+++ b/pkgs/envs.nix
@@ -56,10 +56,11 @@ in {
 
     media = mkEnv "y-media" [
       streamlink
-      py3.youtube-dl
+      yt-dlp
       mpv
       aria2
       js.peerflix
+      castnow
     ];
 
     coins = mkEnv "y-coins" [