diff --git a/pkgs/applications/misc/bklk/default.nix b/pkgs/applications/misc/bklk/default.nix
new file mode 100644
index 000000000000..86b596d395ec
--- /dev/null
+++ b/pkgs/applications/misc/bklk/default.nix
@@ -0,0 +1,29 @@
+{ lib, stdenv, fetchFromGitHub, ncurses }:
+
+stdenv.mkDerivation rec {
+  pname = "bklk";
+  version = "unstable-2020-12-29";
+
+  src = fetchFromGitHub {
+    owner = "Ruunyox";
+    repo = pname;
+    rev = "26f3420aa5726e152a745278ddb98dc99c0a935e";
+    sha256 = "sha256-R3H6tv6fzQG41Y2rui0K8fdQ/+Ywnc5hqTPFjktrhF8=";
+  };
+
+  buildInputs = [ ncurses ];
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp bklk $out/bin
+  '';
+
+  meta = with lib; {
+    description = "Ncurses Binary Clock";
+    longDescription = "bklk is a simple binary clock for your terminal.";
+    homepage = "https://github.com/Ruunyox/bklk";
+    license = licenses.mit;
+    maintainers = with maintainers; [ j0hax ];
+    platforms = platforms.all;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f828f7992b27..a1431bce8baf 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1341,6 +1341,8 @@ with pkgs;
 
   inherit (nodePackages) hyperspace-cli;
 
+  bklk = callPackage ../applications/misc/bklk { };
+
   bkyml = callPackage ../tools/misc/bkyml { };
 
   blockbench-electron = callPackage ../applications/graphics/blockbench-electron { };