diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 86bba23542aa..c4fafc03ac00 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -9012,6 +9012,12 @@
     githubId = 1769386;
     name = "Liam Diprose";
   };
+  liberatys = {
+    email = "liberatys@hey.com";
+    name = "Nick Anthony Flueckiger";
+    github = "liberatys";
+    githubId = 35100156;
+  };
   libjared = {
     email = "jared@perrycode.com";
     github = "libjared";
diff --git a/pkgs/development/tools/sem/default.nix b/pkgs/development/tools/sem/default.nix
new file mode 100644
index 000000000000..177490762722
--- /dev/null
+++ b/pkgs/development/tools/sem/default.nix
@@ -0,0 +1,31 @@
+{ lib, buildGoModule, fetchFromGitHub }:
+
+buildGoModule rec {
+  pname = "sem";
+  version = "0.28.1";
+
+  src = fetchFromGitHub {
+    owner = "semaphoreci";
+    repo = "cli";
+    rev = "v${version}";
+    sha256 = "sha256-pyin05mPIAq5dJebLehsCYDaIf5eGCcGzF5uz8egJV8=";
+  };
+
+  vendorSha256 = "sha256-kuLN3r6CGL/fGQ5ggSLZWNC4AVvvGn6znTFGqkS4AXg=";
+  subPackages = [ "." ];
+
+  ldflags = [ "-X main.version=${version}" "-X main.buildSource=nix" ];
+
+  postInstall = ''
+    install -m755 $out/bin/cli $out/bin/sem
+  '';
+
+  meta = with lib; {
+    description = "A cli to operate on semaphore ci (2.0)";
+    homepage = "https://github.com/semaphoreci/cli";
+    changelog = "https://github.com/semaphoreci/cli/releases/tag/v${version}";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ liberatys ];
+    platforms = platforms.linux;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f9fe92ffa32d..4f73e5079806 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -19170,6 +19170,8 @@ with pkgs;
 
   selendroid = callPackage ../development/tools/selenium/selendroid { };
 
+  sem = callPackage ../development/tools/sem { };
+
   semver-tool = callPackage ../development/tools/misc/semver-tool { };
 
   semantik = libsForQt5.callPackage ../applications/office/semantik { };