diff --git a/scripts/ci/lint-rules.test.ts b/scripts/ci/lint-rules.test.ts
index 260077ee74..4e45039639 100644
--- a/scripts/ci/lint-rules.test.ts
+++ b/scripts/ci/lint-rules.test.ts
@@ -11,6 +11,7 @@ import {
     BARE_REQUIRE_RATCHET,
     changedFiles,
     checkSource,
+    checkSwiftSource,
     namesToolCommand,
     namesTranscriptFormat,
     pluginsDisabledFor,
@@ -32,6 +33,82 @@ function rules(source: string, file = "src/example.ts"): string[] {
     return checkSource(file, source).map((f) => f.rule);
 }
 
+describe("swift-no-entry-macro", () => {
+    const swiftRules = (source: string) => checkSwiftSource("Sources/Example.swift", source).map((f) => f.rule);
+
+    test("flags @Entry, which needs Xcode's SwiftUIMacros plugin", () => {
+        expect(swiftRules("extension EnvironmentValues {\n    @Entry public var flag = false\n}\n")).toEqual([
+            "swift-no-entry-macro",
+        ]);
+    });
+
+    test("ignores inline comments and ordinary, escaped, raw and multiline string literals", () => {
+        const source = [
+            "let flag = false // @Entry",
+            'let text = "@Entry"',
+            'let escaped = "quote: \\" @Entry"',
+            'let raw = #"@Entry "quoted""#',
+            'let multiline = """',
+            "@Entry",
+            '"""',
+            'let rawMultiline = ##"""',
+            '@Entry """ still raw',
+            '"""##',
+            'let multipleHashes = ##"@Entry"##',
+            String.raw`let interpolated = "\("@Entry")"`,
+            String.raw`let rawInterpolated = #"\#("@Entry")"#`,
+        ].join("\n");
+        expect(swiftRules(source)).toEqual([]);
+    });
+
+    test("ignores nested block comments while preserving the position of a real attribute", () => {
+        const source = [
+            "/* @Entry",
+            "   /* nested @Entry */ still a comment",
+            "*/ extension EnvironmentValues {",
+            "/* @Entry */ @Entry var flag = false",
+            "}",
+        ].join("\n");
+        expect(checkSwiftSource("Sources/Example.swift", source)).toMatchObject([
+            { rule: "swift-no-entry-macro", line: 4, column: 14, text: "/* @Entry */ @Entry var flag = false" },
+        ]);
+    });
+
+    test("still flags attributes after strings and honours an explicit suppression", () => {
+        expect(swiftRules('let text = "@Entry"; @Entry var flag = false')).toEqual(["swift-no-entry-macro"]);
+        expect(swiftRules('let raw = #"@Entry"#; @Entry var flag = false')).toEqual(["swift-no-entry-macro"]);
+        expect(swiftRules("// lint-rules-ignore: fixture\n@Entry var flag = false")).toEqual([]);
+    });
+
+    test("ignores hash-delimited regex contents, including quotes and escaped delimiters", () => {
+        for (const pattern of ["#/@Entry/#", '#/"/#', '##/@Entry /# " /##', String.raw`#/\/# @Entry/#`]) {
+            expect(swiftRules(`let pattern = ${pattern}`)).toEqual([]);
+        }
+
+        expect(swiftRules('let pattern = #/\n@Entry " // /*\n/#')).toEqual([]);
+    });
+
+    test("a quote inside a regex cannot hide a later real attribute or move its diagnostic", () => {
+        for (const pattern of ['#/"/#', '##/" /# @Entry /##', String.raw`#/\/# " @Entry/#`]) {
+            const source = `let pattern = ${pattern}\n@Entry var flag = false`;
+            expect(checkSwiftSource("Sources/Example.swift", source)).toMatchObject([
+                { rule: "swift-no-entry-macro", line: 2, column: 1, text: "@Entry var flag = false" },
+            ]);
+        }
+    });
+
+    test("leaves a hand-written EnvironmentKey and a mention in a comment alone", () => {
+        const source = [
+            "private struct FlagKey: EnvironmentKey { static let defaultValue = false }",
+            "// was @Entry before #564",
+            "extension EnvironmentValues {",
+            "    var flag: Bool { get { self[FlagKey.self] } set { self[FlagKey.self] = newValue } }",
+            "}",
+        ].join("\n");
+        expect(swiftRules(source)).toEqual([]);
+    });
+});
+
 describe("no-hardcoded-tmp", () => {
     test("flags a /tmp literal in the binding contexts GritQL enumerated", () => {
         expect(rules('const p = "/tmp/x";')).toContain("no-hardcoded-tmp");
diff --git a/scripts/ci/lint-rules.ts b/scripts/ci/lint-rules.ts
index 44299a4be5..ed684bb275 100644
--- a/scripts/ci/lint-rules.ts
+++ b/scripts/ci/lint-rules.ts
@@ -766,9 +766,20 @@ const SWIFT_CLICK_COUNT_RULE = {
 };
 const SWIFT_CURRENT_EVENT_CLICK_COUNT = /currentEvent\s*[?!]?\s*\.clickCount/;
 
+const SWIFT_ENTRY_MACRO_RULE = {
+    name: "swift-no-entry-macro",
+    severity: "error" as const,
+    message:
+        "`@Entry` is a SwiftUI macro: its plugin (SwiftUIMacros) ships only with Xcode, so the app stops building on " +
+        "a Mac with only the Command Line Tools (#564). Write a `private struct <Name>Key: EnvironmentKey` and a " +
+        "computed `EnvironmentValues` property with `get`/`set`, as `Style/MotionEnvironment.swift` does.",
+};
+const SWIFT_ENTRY_MACRO = /@Entry\b/;
+
 const SWIFT_LINE_RULES = [
     { rule: SWIFT_WAIT_RULE, pattern: SWIFT_BARE_WAIT },
     { rule: SWIFT_CLICK_COUNT_RULE, pattern: SWIFT_CURRENT_EVENT_CLICK_COUNT },
+    { rule: SWIFT_ENTRY_MACRO_RULE, pattern: SWIFT_ENTRY_MACRO },
 ];
 
 /**
@@ -1080,9 +1091,101 @@ function recordBusyWaitFindings(root: SgNode, record: RecordFinding): void {
     recordSleepSyncFindings(root.findAll(SLEEP_SYNC_IN_LOOP_MATCHER), record);
 }
 
+interface SwiftLintString {
+    end: string;
+    hashes: string;
+    interpolationDepth: number;
+}
+
+/** Blank Swift comments, strings and hash-delimited regexes without moving code's line or column offsets. */
+function maskSwiftNonCode(source: string): string {
+    const masked = source.split("");
+    let index = 0;
+    let blockDepth = 0;
+    let regexEnd = "";
+    const strings: SwiftLintString[] = [];
+
+    const blank = (end: number) => {
+        while (index < end) {
+            if (source[index] !== "\n" && source[index] !== "\r") {
+                masked[index] = " ";
+            }
+
+            index++;
+        }
+    };
+
+    while (index < source.length) {
+        const string = strings.at(-1);
+
+        if (blockDepth > 0) {
+            if (source.startsWith("/*", index)) {
+                blockDepth++;
+                blank(index + 2);
+            } else if (source.startsWith("*/", index)) {
+                blockDepth--;
+                blank(index + 2);
+            } else {
+                blank(index + 1);
+            }
+        } else if (regexEnd) {
+            if (source[index] === "\\") {
+                blank(Math.min(index + 2, source.length));
+            } else if (source.startsWith(regexEnd, index)) {
+                blank(index + regexEnd.length);
+                regexEnd = "";
+            } else {
+                blank(index + 1);
+            }
+        } else if (string?.interpolationDepth === 0) {
+            if (source.startsWith(string.end, index)) {
+                blank(index + string.end.length);
+                strings.pop();
+            } else if (source.startsWith(`\\${string.hashes}(`, index)) {
+                blank(index + string.hashes.length + 2);
+                string.interpolationDepth = 1;
+            } else if (source.startsWith(`\\${string.hashes}`, index)) {
+                blank(Math.min(index + string.hashes.length + 2, source.length));
+            } else {
+                blank(index + 1);
+            }
+        } else if (source.startsWith("//", index)) {
+            const newline = source.indexOf("\n", index);
+            blank(newline === -1 ? source.length : newline);
+        } else if (source.startsWith("/*", index)) {
+            blockDepth = 1;
+            blank(index + 2);
+        } else if (source[index] === '"' || source[index] === "#") {
+            const regexOpening = /^(#+)\//.exec(source.slice(index));
+            const opening = /^(#*)("{3}|")/.exec(source.slice(index));
+
+            if (regexOpening) {
+                regexEnd = `/${regexOpening[1]}`;
+                blank(index + regexOpening[0].length);
+            } else if (opening) {
+                strings.push({ end: opening[2] + opening[1], hashes: opening[1], interpolationDepth: 0 });
+                blank(index + opening[0].length);
+            } else {
+                index++;
+            }
+        } else if (string && source[index] === "(") {
+            string.interpolationDepth++;
+            index++;
+        } else if (string && source[index] === ")") {
+            string.interpolationDepth--;
+            blank(index + 1);
+        } else {
+            index++;
+        }
+    }
+
+    return masked.join("");
+}
+
 /** Swift has no grammar in the ast-grep napi package, so its rules are line regexes. */
 export function checkSwiftSource(file: string, source: string): Finding[] {
     const lines = source.split("\n");
+    const codeLines = maskSwiftNonCode(source).split("\n");
     const findings: Finding[] = [];
 
     for (const [index, text] of lines.entries()) {
@@ -1091,7 +1194,7 @@ export function checkSwiftSource(file: string, source: string): Finding[] {
         }
 
         for (const { rule, pattern } of SWIFT_LINE_RULES) {
-            const column = text.search(pattern);
+            const column = (rule === SWIFT_ENTRY_MACRO_RULE ? codeLines[index] : text).search(pattern);
 
             if (column === -1) {
                 continue;
diff --git a/src/macos/GenesisKit/Sources/GenesisKit/Settings/NativeGlass.swift b/src/macos/GenesisKit/Sources/GenesisKit/Settings/NativeGlass.swift
index d42fcd2f18..3188d6bb7f 100644
--- a/src/macos/GenesisKit/Sources/GenesisKit/Settings/NativeGlass.swift
+++ b/src/macos/GenesisKit/Sources/GenesisKit/Settings/NativeGlass.swift
@@ -229,10 +229,15 @@ public enum NativePaneLevel: Sendable {
     case bar
 }
 
+private struct NativePanesKey: EnvironmentKey { static let defaultValue = false }
+
 extension EnvironmentValues {
     /// On in a host that draws its panes in the native settings look over a `NativeSettingsBackdrop` (the hub's
     /// Native style). GenesisKit panes then draw `NativePaneFill` instead of their own palette.
-    @Entry public var nativePanes = false
+    public var nativePanes: Bool {
+        get { self[NativePanesKey.self] }
+        set { self[NativePanesKey.self] = newValue }
+    }
 }
 
 /// The fill of one pane in the native settings look, for the theme in the environment.
diff --git a/src/macos/GenesisKit/Sources/GenesisKit/Settings/NativeSettingsSearch.swift b/src/macos/GenesisKit/Sources/GenesisKit/Settings/NativeSettingsSearch.swift
index 87fdb86fa1..52cf0d8de2 100644
--- a/src/macos/GenesisKit/Sources/GenesisKit/Settings/NativeSettingsSearch.swift
+++ b/src/macos/GenesisKit/Sources/GenesisKit/Settings/NativeSettingsSearch.swift
@@ -115,14 +115,27 @@ struct NativeSettingsSearchKey: PreferenceKey {
     }
 }
 
+private struct NativeSettingsPageIDKey: EnvironmentKey { static let defaultValue: String? = nil }
+private struct NativeSettingsSearchCardKey: EnvironmentKey { static let defaultValue: String? = nil }
+private struct NativeSettingsIndexingKey: EnvironmentKey { static let defaultValue = false }
+
 extension EnvironmentValues {
     /// The settings page a card or row is drawn on; nil outside the settings window.
-    @Entry var nativeSettingsPageID: String? = nil
+    var nativeSettingsPageID: String? {
+        get { self[NativeSettingsPageIDKey.self] }
+        set { self[NativeSettingsPageIDKey.self] = newValue }
+    }
     /// The title of the titled card a row is drawn in, so the row's search key and its jump target name the card.
-    @Entry var nativeSettingsSearchCard: String? = nil
+    var nativeSettingsSearchCard: String? {
+        get { self[NativeSettingsSearchCardKey.self] }
+        set { self[NativeSettingsSearchCardKey.self] = newValue }
+    }
     /// True in the hidden copy of the pages the search reads: nothing there flashes, and a page's own code must not
     /// speak (`GenAnnounce`) or ask for anything, since nobody sees it.
-    @Entry public var nativeSettingsIndexing = false
+    public var nativeSettingsIndexing: Bool {
+        get { self[NativeSettingsIndexingKey.self] }
+        set { self[NativeSettingsIndexingKey.self] = newValue }
+    }
 }
 
 /// A card or row the search can jump to: when a jump names it, it flashes, and its marker is what the page scrolls to.
diff --git a/src/macos/GenesisKit/Sources/GenesisKitBase/Window/WindowTitlebar.swift b/src/macos/GenesisKit/Sources/GenesisKitBase/Window/WindowTitlebar.swift
index ee956e5a85..0213e08b19 100644
--- a/src/macos/GenesisKit/Sources/GenesisKitBase/Window/WindowTitlebar.swift
+++ b/src/macos/GenesisKit/Sources/GenesisKitBase/Window/WindowTitlebar.swift
@@ -373,8 +373,13 @@ public struct TitlebarMetrics: Equatable {
     public var leadingReserve: CGFloat = 0
 }
 
+private struct TitlebarMetricsKey: EnvironmentKey { static let defaultValue: TitlebarMetrics = TitlebarMetrics() }
+
 extension EnvironmentValues {
-    @Entry public var titlebarMetrics = TitlebarMetrics()
+    public var titlebarMetrics: TitlebarMetrics {
+        get { self[TitlebarMetricsKey.self] }
+        set { self[TitlebarMetricsKey.self] = newValue }
+    }
 }
 
 /// The empty part of the strip. It lies behind the window's SwiftUI content, so a control in the
diff --git a/src/macos/GenesisTools/Sources/Parts/Hub/Hub/HubPanels.swift b/src/macos/GenesisTools/Sources/Parts/Hub/Hub/HubPanels.swift
index e9b064e8a1..cfa161679f 100644
--- a/src/macos/GenesisTools/Sources/Parts/Hub/Hub/HubPanels.swift
+++ b/src/macos/GenesisTools/Sources/Parts/Hub/Hub/HubPanels.swift
@@ -510,9 +510,14 @@ struct PaneRail: View {
 
 // MARK: - Glass surfaces
 
+private struct HubGlassKey: EnvironmentKey { static let defaultValue = false }
+
 extension EnvironmentValues {
     /// On when the hub's glass mode is (`HubGlass`): surfaces let the blurred desktop through.
-    @Entry var hubGlass = false
+    var hubGlass: Bool {
+        get { self[HubGlassKey.self] }
+        set { self[HubGlassKey.self] = newValue }
+    }
 }
 
 enum HubSurfaceLevel {