From 58312b2ca2fdf5e0f753e496b4902a523cbb96aa Mon Sep 17 00:00:00 2001
From: m3tm3re <p@m3ta.dev>
Date: Wed, 18 Feb 2026 17:54:20 +0100
Subject: [PATCH] feat: add openspec package

---
 README.md        |  1 +
 flake.lock       | 23 ++++++++++++++++++++++-
 flake.nix        |  6 ++++++
 pkgs/default.nix |  1 +
 4 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 2048082..4e39219 100644
--- a/README.md
+++ b/README.md
@@ -50,6 +50,7 @@ nix run git+https://code.m3ta.dev/m3tam3re/nixpkgs#zellij-ps
 | `notesmd-cli`      | Obsidian CLI (Community) - Interact with Obsidian in the terminal |
 | `opencode`         | AI coding agent built for the terminal |
 | `opencode-desktop` | OpenCode Desktop App with Wayland support (includes workaround for upstream issue #11755) |
+| `openspec`         | Spec-driven development (SDD) for AI coding assistants |
 | `pomodoro-timer`   | Pomodoro timer utility                |
 | `rofi-project-opener` | Rofi-based project launcher        |
 | `sidecar`          | Companion tool for CLI agents with diffs, file trees, and task management |
diff --git a/flake.lock b/flake.lock
index 003cecd..32f8800 100644
--- a/flake.lock
+++ b/flake.lock
@@ -53,11 +53,32 @@
         "type": "github"
       }
     },
+    "openspec": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1771409495,
+        "narHash": "sha256-LplnuO/OHSFL8S8iwQ16CZTjlPxRV9XohkKxL3uA5Sc=",
+        "owner": "Fission-AI",
+        "repo": "OpenSpec",
+        "rev": "5fd8e9d66c3b6b116e7af814a6013c2d9c4958dd",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Fission-AI",
+        "repo": "OpenSpec",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "nixpkgs": "nixpkgs",
         "nixpkgs-master": "nixpkgs-master",
-        "opencode": "opencode"
+        "opencode": "opencode",
+        "openspec": "openspec"
       }
     }
   },
diff --git a/flake.nix b/flake.nix
index 234c514..79a8afd 100644
--- a/flake.nix
+++ b/flake.nix
@@ -10,6 +10,12 @@
       url = "github:anomalyco/opencode/v1.2.6";
       inputs.nixpkgs.follows = "nixpkgs-master";
     };
+
+    # openspec - spec-driven development for AI coding assistants
+    openspec = {
+      url = "github:Fission-AI/OpenSpec";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs = {
diff --git a/pkgs/default.nix b/pkgs/default.nix
index 2ac0430..dd84ac5 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -24,4 +24,5 @@
   # Imported from flake inputs
   opencode = inputs.opencode.packages.${pkgs.system}.opencode;
   opencode-desktop = pkgs.callPackage ./opencode-desktop {inherit inputs;};
+  openspec = inputs.openspec.packages.${pkgs.system}.default;
 }