diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a672f32
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,10 @@
+build
+.build
+.DS_Store
+.gradle
+gradle-daemon-jvm.properties
+.idea
+.kotlin
+local.properties
+Package.resolved
+*.xcodeproj
diff --git a/components/other/other.swift b/components/other/other.swift
new file mode 100644
index 0000000..a4f2737
--- /dev/null
+++ b/components/other/other.swift
@@ -0,0 +1,70 @@
+import Foundation
+
+/// Decode a base64 string back into a regular string
+func otherBase64ToString(_ encoded: String) -> String {
+    guard
+        let data = Data(base64Encoded: encoded),
+        let str = String(data: data, encoding: .utf8)
+    else {
+        return ""
+    }
+    return str
+}
+
+/// Capitalize the first letter of a string
+func otherCapitalize(_ s: String) -> String {
+    guard let first = s.first else {
+        return s
+    }
+    return String(first).uppercased() + String(s.dropFirst())
+}
+
+/// Launch to wait for asynchrnous actions
+func otherLaunch() {
+    RunLoop.current.run()
+}
+
+/// Count leading spaces in a line
+func otherLineIndent(_ line: String) -> Int {
+    var count = 0
+    for ch in line {
+        if ch == " " {
+            count += 1
+        } else {
+            break
+        }
+    }
+    return count
+}
+
+/// Print to stderr
+func otherPrintStderr(_ txt: String) {
+    if let dat = "\(txt)\n".data(using: .utf8) {
+        FileHandle.standardError.write(dat)
+    }
+}
+
+/// Print each key/value processed by a controller into stderr
+func otherSetupConsoleLogging(
+    _ ctrl: DialectController,
+    _ prefix: String
+) {
+    ctrl.registerCallback { c -> Void in
+        let value = c.fieldAny(c.recentField)
+        let line = "ИГР \(prefix) k/v: '\(c.recentField)'/'\(value)'"
+        otherPrintStderr(line)
+    }
+}
+
+/// Write output text to a file
+func otherWriteFile(
+    _ path: String,
+    _ content: String
+) {
+    try? content.write(toFile: path, atomically: true, encoding: .utf8)
+}
+
+/// Terminate the main RunLoop
+func otherShutdown() {
+    exit(0)
+}
diff --git a/dialect.yml b/dialect.yml
index ba619a4..4258641 100644
--- a/dialect.yml
+++ b/dialect.yml
@@ -1,7 +1,7 @@
 version: 4
 
 output:
-    ver-mac/src/dialect.swift:
+    game/ver-mac/src/dialect.swift:
         type: swift
 
 RootComponent:
diff --git a/game/ver-mac/src/other/other.swift b/game/ver-mac/src/other/other.swift
new file mode 120000
index 0000000..f91488c
--- /dev/null
+++ b/game/ver-mac/src/other/other.swift
@@ -0,0 +1 @@
+../../../../components/other/other.swift
\ No newline at end of file
diff --git a/game/ver-mac/src/root/root.swift b/game/ver-mac/src/root/root.swift
new file mode 120000
index 0000000..5f11ed3
--- /dev/null
+++ b/game/ver-mac/src/root/root.swift
@@ -0,0 +1 @@
+../../../../components/root/root.swift
\ No newline at end of file
diff --git a/game/ver-mac/src/root/rootVM.swift b/game/ver-mac/src/root/rootVM.swift
new file mode 120000
index 0000000..adfc760
--- /dev/null
+++ b/game/ver-mac/src/root/rootVM.swift
@@ -0,0 +1 @@
+../../../../components/root/rootVM.swift
\ No newline at end of file
diff --git a/game/ver-mac/src/root/view/RootView.swift b/game/ver-mac/src/root/view/RootView.swift
new file mode 120000
index 0000000..c81285e
--- /dev/null
+++ b/game/ver-mac/src/root/view/RootView.swift
@@ -0,0 +1 @@
+../../../../../components/root/mac/view/RootView.swift
\ No newline at end of file
diff --git a/util/build-mac b/util/build-mac
new file mode 100755
index 0000000..872a9f5
--- /dev/null
+++ b/util/build-mac
@@ -0,0 +1,10 @@
+#!/bin/bash -e
+SDIR=$(cd "$(dirname "$0")" ; pwd -P)
+
+T=$SDIR/step
+source $SDIR/paths
+
+STEP=0
+source $T/generateDialect
+source $T/buildMac
+source $T/packageMac
diff --git a/util/paths b/util/paths
new file mode 100644
index 0000000..8df056d
--- /dev/null
+++ b/util/paths
@@ -0,0 +1 @@
+APP_MAC=$SDIR/../game/ver-mac/.build/ogs-mahjong.app
diff --git a/util/rm-mac-geom b/util/rm-mac-geom
new file mode 100755
index 0000000..6b96fe6
--- /dev/null
+++ b/util/rm-mac-geom
@@ -0,0 +1,9 @@
+#!/bin/bash -e
+
+killall cfprefsd 2>/dev/null || true
+sleep 1
+
+rm -f $HOME/Library/Preferences/OGS\ Mahjong.plist \
+      $HOME/Library/Preferences/org.opengamestudio.Mahjong.plist
+
+echo "removed app preferences (window geometry)"
diff --git a/util/run-mac b/util/run-mac
new file mode 100755
index 0000000..4a795e9
--- /dev/null
+++ b/util/run-mac
@@ -0,0 +1,8 @@
+#!/bin/bash -e
+SDIR=$(cd "$(dirname "$0")" ; pwd -P)
+
+T=$SDIR/step
+source $SDIR/paths
+
+STEP=0
+source $T/runMac
diff --git a/util/step/buildMac b/util/step/buildMac
new file mode 100755
index 0000000..f4867bf
--- /dev/null
+++ b/util/step/buildMac
@@ -0,0 +1,7 @@
+#!/bin/bash -e
+
+STEP=$((STEP+1))
+echo -e "\n> > > > Step №$STEP. Build for macOS"
+
+cd $SDIR/../game/ver-mac
+swift build
diff --git a/util/step/generateDialect b/util/step/generateDialect
new file mode 100755
index 0000000..65357f5
--- /dev/null
+++ b/util/step/generateDialect
@@ -0,0 +1,6 @@
+#!/bin/bash -e
+
+STEP=$((STEP+1))
+echo -e "\n> > > > Step №$STEP. Generate Dialect"
+
+$SDIR/../../dialect/util/run-generator --file=$SDIR/../dialect.yml
diff --git a/util/step/packageMac b/util/step/packageMac
new file mode 100755
index 0000000..527df00
--- /dev/null
+++ b/util/step/packageMac
@@ -0,0 +1,15 @@
+#!/bin/bash -e
+
+STEP=$((STEP+1))
+echo -e "\n> > > > Step №$STEP. Make an app package for macOS"
+
+rm -rf $APP_MAC
+
+APP_DAT=$APP_MAC/Contents
+
+mkdir -p $APP_DAT/MacOS
+mkdir -p $APP_DAT/Resources
+
+cp $SDIR/../game/ver-mac/.build/debug/ogs-mahjong $APP_DAT/MacOS/ogs-mahjong
+cp $SDIR/../game/ver-mac/Info.plist $APP_DAT/Info.plist
+cp $SDIR/../game/ver-mac/Resources/AppIcon.icns $APP_DAT/Resources/AppIcon.icns
diff --git a/util/step/runMac b/util/step/runMac
new file mode 100755
index 0000000..f43b321
--- /dev/null
+++ b/util/step/runMac
@@ -0,0 +1,6 @@
+#!/bin/bash -e
+
+STEP=$((STEP+1))
+echo -e "\n> > > > Step №$STEP. Run macOS app"
+
+$SDIR/../game/ver-mac/.build/ogs-mahjong.app/Contents/MacOS/ogs-mahjong