diff --git a/.github/workflows/swift.yml b/.github/workflows/swift.yml
index d5120d3..d14ed70 100644
--- a/.github/workflows/swift.yml
+++ b/.github/workflows/swift.yml
@@ -2,59 +2,62 @@ name: Swift
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main]
 
 jobs:
   spm_macos:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v3
-    - name: Build
-      run: swift build
-    - name: Test
-      run: swift test
+      - uses: actions/checkout@v4
+      - name: Build
+        run: swift build
+      - name: Test
+        run: swift test
 
   spm_linux:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        swift: ["5.9.1", "5.7.3"]
     container:
-      image: swift:5.7
+      image: swift:${{ matrix.swift }}
     steps:
-    - uses: actions/checkout@v3
-    - name: Build
-      run: swift build
-    - name: Test
-      run: swift test
+      - uses: actions/checkout@v4
+      - name: Build
+        run: swift build
+      - name: Test
+        run: swift test
 
   xcode_macos:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v3
-    - name: Build
-      run: xcodebuild build -scheme GeoProjector-Package -destination 'platform=macOS' 
+      - uses: actions/checkout@v4
+      - name: Build
+        run: xcodebuild build -scheme GeoProjector-Package -destination 'platform=macOS'
 
   xcode_ios:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v3
-    - name: Build
-      run: xcodebuild build -scheme GeoProjector-Package -destination 'name=iPhone 14' -sdk iphoneos
+      - uses: actions/checkout@v4
+      - name: Build
+        run: xcodebuild build -scheme GeoProjector-Package -destination 'name=iPhone 14' -sdk iphoneos
 
   cassini_macos:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v3
-    - name: Build
-      run: |
-        cd Examples
-        xcodebuild build -scheme 'Cassini' -destination 'platform=macOS' 
+      - uses: actions/checkout@v4
+      - name: Build
+        run: |
+          cd Examples
+          xcodebuild build -scheme 'Cassini' -destination 'platform=macOS'
 
   cassini_ios:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v3
-    - name: Build
-      run: |
-        cd Examples
-        xcodebuild build -scheme 'Cassini' -destination 'name=iPhone 14' -sdk iphoneos
+      - uses: actions/checkout@v4
+      - name: Build
+        run: |
+          cd Examples
+          xcodebuild build -scheme 'Cassini' -destination 'name=iPhone 14' -sdk iphoneos
diff --git a/Package.resolved b/Package.resolved
index f7802da..8d69bd0 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -14,8 +14,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/maparoni/geojsonkit-turf",
       "state" : {
-        "revision" : "7e5d8bad4bc842e27caacf0a89223c7e047fbe64",
-        "version" : "0.1.4"
+        "revision" : "21452ac7ee183930325e786575d552129c21b165",
+        "version" : "0.2.0"
       }
     },
     {
@@ -23,8 +23,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-argument-parser",
       "state" : {
-        "revision" : "fddd1c00396eed152c45a46bea9f47b98e59301d",
-        "version" : "1.2.0"
+        "revision" : "8f4d2753f0e4778c76d5f05ad16c74f707390531",
+        "version" : "1.2.3"
       }
     }
   ],
diff --git a/Package.swift b/Package.swift
index 33af06f..ed13990 100644
--- a/Package.swift
+++ b/Package.swift
@@ -5,6 +5,10 @@ import PackageDescription
 
 let package = Package(
   name: "GeoProjector",
+  platforms: [
+    .macOS(.v12), .iOS(.v15), .watchOS(.v8), .tvOS(.v15),
+    .custom("xros", versionString: "1.0")
+  ],
   products: [
     .library(
       name: "GeoProjector",
diff --git a/Sources/GeoDrawer/GeoDrawer.swift b/Sources/GeoDrawer/GeoDrawer.swift
index 2579ce3..b28dedb 100644
--- a/Sources/GeoDrawer/GeoDrawer.swift
+++ b/Sources/GeoDrawer/GeoDrawer.swift
@@ -128,17 +128,21 @@ public struct GeoDrawer {
     self.converter = { (converter($0), false) }
   }
   
-  let projection: Projection?
+  public let projection: Projection?
   
-  let size: Size
+  public let size: Size
   
   let zoomTo: Rect?
 
-  let insets: EdgeInsets
+  public let insets: EdgeInsets
 
   var invertCheck: ((GeoJSON.Polygon) -> Bool)? { projection?.invertCheck }
   
   let converter: (GeoJSON.Position) -> (Point, Bool)?
+  
+  public func point(for position: GeoJSON.Position) -> Point? {
+    converter(position)?.0
+  }
 }
 
 // MARK: - Content
diff --git a/Sources/GeoDrawer/GeoJSON+Continents.swift b/Sources/GeoDrawer/GeoJSON+Continents.swift
index 773c4f3..83e16a1 100644
--- a/Sources/GeoDrawer/GeoJSON+Continents.swift
+++ b/Sources/GeoDrawer/GeoJSON+Continents.swift
@@ -20,7 +20,7 @@ import UIKit
 #endif
 
 extension GeoJSON.GeometryObject {
-  public var geometries: [GeoJSON.Geometry] {
+  var geometries: [GeoJSON.Geometry] {
     switch self {
     case .single(let geo): return [geo]
     case .multi(let geos): return geos
diff --git a/Sources/GeoDrawer/GeoMap+AppKit.swift b/Sources/GeoDrawer/GeoMap+AppKit.swift
index 3989bf3..18134ca 100644
--- a/Sources/GeoDrawer/GeoMap+AppKit.swift
+++ b/Sources/GeoDrawer/GeoMap+AppKit.swift
@@ -153,7 +153,7 @@ public struct GeoMap: NSViewRepresentable {
 }
 
 #if DEBUG
-@available(iOS 13.0, macOS 11.0, *)
+@available(iOS 13.0, visionOS 1.0, macOS 11.0, *)
 struct GeoMap_Previews: PreviewProvider {
   static var previews: some View {
     GeoMap(
diff --git a/Sources/GeoDrawer/GeoMap+UIKit.swift b/Sources/GeoDrawer/GeoMap+UIKit.swift
index 076b9f8..b9f5c7a 100644
--- a/Sources/GeoDrawer/GeoMap+UIKit.swift
+++ b/Sources/GeoDrawer/GeoMap+UIKit.swift
@@ -110,7 +110,7 @@ public class GeoMapView: UIView {
   }
 }
 
-@available(iOS 13.0, *)
+@available(iOS 13.0, visionOS 1.0, *)
 public struct GeoMap: UIViewRepresentable {
   
   public init(contents: [GeoDrawer.Content] = [], projection: Projection = Projections.Equirectangular(), zoomTo: GeoJSON.BoundingBox? = nil, insets: GeoProjector.EdgeInsets = .zero, mapBackground: UIColor? = nil, mapOutline: UIColor? = nil) {
@@ -167,7 +167,7 @@ public struct GeoMap: UIViewRepresentable {
 }
 
 #if DEBUG
-@available(iOS 13.0, macOS 11.0, *)
+@available(iOS 13.0, visionOS 1.0, macOS 11.0, *)
 struct GeoMap_Previews: PreviewProvider {
   static var previews: some View {
     GeoMap(