From 50bce7ec3b690bb4c06f610e89231a48bd493a62 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <m@mitchellh.com>
Date: Fri, 1 May 2026 15:51:40 -0700
Subject: [PATCH] flake package + program

---
 README.md |  4 ----
 flake.nix | 37 +++++++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 972ee8f..a03c78d 100644
--- a/README.md
+++ b/README.md
@@ -55,10 +55,6 @@ status, counts, etc. can show up inline in things like pull requests.
                                                   sh.tangled.pipeline.status
 ```
 
-```sh
-go run . -addr :8080
-```
-
 ## Configuration
 
 Core configuration controls how tack talks to Tangled. Provider-specific
diff --git a/flake.nix b/flake.nix
index f5eddb9..d98e5e7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -14,12 +14,49 @@
     flake-utils.lib.eachDefaultSystem (
       system: let
         pkgs = nixpkgs.legacyPackages.${system};
+
+        # The tack binary itself. We use buildGoModule because the module is
+        # a single `main` package at the repo root with internal subpackages.
+        # CGO is required for github.com/mattn/go-sqlite3.
+        tack = pkgs.buildGoModule {
+          pname = "tack";
+          version = "0.1.0";
+          src = ./.;
+
+          # vendorHash pins the Go module download FOD. Update this whenever
+          # go.mod / go.sum changes by replacing it with lib.fakeHash and
+          # rebuilding to surface the new hash.
+          vendorHash = "sha256-2G9Bhflpw0BDcytKB4oOGIi3HR2fFd1rwZFcoIC09TQ=";
+
+          # The repo ships a stale `tack` binary at the root that gets caught
+          # by `go test ./...`-style discovery; ignore it during the build.
+          subPackages = ["."];
+
+          # mattn/go-sqlite3 needs cgo + a C compiler.
+          env.CGO_ENABLED = "1";
+        };
       in {
         devShells.default = pkgs.mkShell {
           packages = [
             pkgs.go
           ];
         };
+
+        packages = {
+          default = tack;
+          tack = tack;
+        };
+
+        apps = {
+          default = {
+            type = "app";
+            program = "${tack}/bin/tack";
+          };
+          tack = {
+            type = "app";
+            program = "${tack}/bin/tack";
+          };
+        };
       }
     );
 }
-- 
2.51.2