diff --git a/krebs/2configs/ircd.nix b/krebs/2configs/ircd.nix
index a802b8a25..5435ea166 100644
--- a/krebs/2configs/ircd.nix
+++ b/krebs/2configs/ircd.nix
@@ -8,6 +8,7 @@
   services.ergochat = {
     enable = true;
     settings = {
+      server.name = "irc.r";
       server.secure-nets = [
         "42::0/16"
         "10.240.0.0/12"
diff --git a/krebs/5pkgs/simple/git-assembler.nix b/krebs/5pkgs/simple/git-assembler.nix
new file mode 100644
index 000000000..095dddf0f
--- /dev/null
+++ b/krebs/5pkgs/simple/git-assembler.nix
@@ -0,0 +1,24 @@
+{ pkgs, stdenv }:
+
+stdenv.mkDerivation rec {
+  pname = "git-assembler";
+  version = "1.3";
+
+  src = pkgs.fetchFromGitLab {
+    owner = "wavexx";
+    repo = "git-assembler";
+    rev = "v${version}";
+    hash = "sha256-A+ygt6Fxiu6EkVoQU5L1rhxu2e1HU0nbqJFzLzXzHBo=";
+  };
+
+  buildInputs = [
+    pkgs.python3
+  ];
+
+  buildPhase = ":";
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp git-assembler $out/bin
+  '';
+}
diff --git a/lib/default.nix b/lib/default.nix
index 149b97a72..280f04299 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -39,6 +39,8 @@ let
     ne = x: y: x != y;
     mod = x: y: x - y * (x / y);
 
+    on = b: u: x: y: b (u x) (u y);
+
     genid = lib.genid_uint32; # TODO remove
     genid_uint31 = x: ((lib.genid_uint32 x) + 16777216) / 2;
     genid_uint32 = import ./genid.nix { inherit lib; };
@@ -185,6 +187,30 @@ let
     in
       filter (x: x != []) ([acc.chunk] ++ acc.chunks);
 
+    # Filter adjacent duplicate elements.
+    uniq = uniqBy eq;
+
+    # Filter adjacent duplicate elements determined via the given function.
+    uniqBy = cmp: let
+      f = a: s:
+        if length s == 0 then
+          []
+        else let
+          b = head s;
+        in
+          if cmp a b then
+            f b (tail s)
+          else
+            [b] ++ f b (tail s);
+    in
+      s:
+        if length s == 0 then
+          []
+        else let
+          b = head s;
+        in
+          [b] ++ f b (tail s);
+
     warnOldVersion = oldName: newName:
       if compareVersions oldName newName != -1 then
         trace "Upstream `${oldName}' gets overridden by `${newName}'." newName
diff --git a/lib/haskell.nix b/lib/haskell.nix
index 4f0ee05ab..f87cfa761 100644
--- a/lib/haskell.nix
+++ b/lib/haskell.nix
@@ -39,7 +39,12 @@ rec {
         in
         if parse == null then
           (pkgs.writeText name s).overrideAttrs (old: {
-            dependencies = old.dependencies or [] ++ dependencies;
+            dependencies =
+              lib.uniq
+                (lib.sort (lib.on lib.lessThan (lib.getAttr "name"))
+                  (filter
+                    (lib.ne null)
+                    (old.dependencies or [] ++ dependencies)));
           })
 
         else
diff --git a/tv/5pkgs/simple/alacritty-tv.nix b/tv/5pkgs/simple/alacritty-tv.nix
index 466ff27c5..d80c46cbb 100644
--- a/tv/5pkgs/simple/alacritty-tv.nix
+++ b/tv/5pkgs/simple/alacritty-tv.nix
@@ -70,8 +70,7 @@ pkgs.symlinkJoin {
       # Install stored configuration if it has changed.
       # This allows for both declarative updates and runtime modifications.
       ${pkgs.coreutils}/bin/mkdir -p "$HOME"
-      ref=$(${pkgs.coreutils}/bin/cat "$HOME"/ref)
-      if test "$ref" != ${config-file}; then
+      if test "$(${pkgs.coreutils}/bin/cat "$HOME"/ref)" != ${config-file}; then
         echo ${config-file} > "$HOME"/ref
         ${pkgs.coreutils}/bin/cp ${config-file} "$HOME"/.alacritty.yml
       fi