Flake : Add a basic devshell with sbt & jdk.

.gitignore

@@ -1,4 +1,5 @@
 .idea
 .bsp
+.NixRoot*
 target
 /../target

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1726755586,
+        "narHash": "sha256-PmUr/2GQGvFTIJ6/Tvsins7Q43KTMvMFhvG6oaYK+Wk=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "c04d5652cfa9742b1d519688f65d1bbccea9eb7e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,30 @@
+{
+	description = "test2gis dev shell";
+
+	inputs = {
+		nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+	};
+
+	outputs = { self, nixpkgs } @inputs: let
+		system = "x86_64-linux";
+		lib    = nixpkgs.lib;
+		pkgs   = nixpkgs.legacyPackages.${system};
+
+		jdk = pkgs.corretto11;
+	in {
+		devShells.${system} = {
+			default = pkgs.mkShell rec {
+				nativeBuildInputs = with pkgs; [
+					gnumake
+					sbt
+				];
+				buildInputs = with pkgs; [ ];
+
+				PATH      = [ "${jdk}/bin" ];
+				JAVA_HOME = "${jdk}";
+				LD_LIBRARY_PATH   = "${lib.makeLibraryPath buildInputs}";
+				SOURCE_DATE_EPOCH = "${toString self.lastModified}";
+			};
+		};
+	};
+}