nix: use flake for builds

Jenkinsfile

@@ -22,14 +22,16 @@ pipeline {
   stages {
     stage('Install') {
       steps {
-        sh 'yarn install'
+        script {
+          nix.develop('yarn install')
+        }
       }
     }
 
     stage('Build') {
       steps {
         script {
-          sh 'yarn build'
+          nix.develop('yarn build')
           jenkins.genBuildMetaJSON('build/build.json')
         }
       }
@@ -38,13 +40,15 @@ pipeline {
     stage('Publish') {
       steps {
         sshagent(credentials: ['status-im-auto-ssh']) {
-          sh """
-            ghp-import \
-              -b ${deployBranch()} \
-              -c ${deployDomain()} \
-              -p build
-          """
-         }
+          script {
+            nix.develop("""
+              ghp-import \
+                -b ${deployBranch()} \
+                -c ${deployDomain()} \
+                -p build
+            """, pure: false)
+          }
+        }
       }
     }
   }

flake.lock

@@ -0,0 +1,26 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1733730953,
+        "narHash": "sha256-dlK7n82FEyZlHH7BFHQAM5tua+lQO1Iv7aAtglc1O5s=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "7109b680d161993918b0a126f38bc39763e5a709",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-24.05",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,35 @@
+{
+  description = "Flake file for logos website ";
+
+  inputs = {
+    nixpkgs.url = "nixpkgs/nixos-24.05";
+  };
+
+  outputs =
+    { self, nixpkgs }:
+    let
+      supportedSystems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+      forEachSystem = nixpkgs.lib.genAttrs supportedSystems;
+      pkgsFor = forEachSystem (system: import nixpkgs { inherit system; });
+    in
+    rec {
+      formatter = forEachSystem (system: pkgsFor.${system}.nixpkgs-fmt);
+
+      devShells = forEachSystem (system: {
+        default = pkgsFor.${system}.mkShellNoCC {
+          packages = with pkgsFor.${system}.buildPackages; [
+            git
+            openssh
+            yarn # 1.22.22
+            nodejs_20 # v20.15.1
+            ghp-import # 2.1.0
+          ];
+        };
+      });
+    };
+}