fix: add macOS desktop build support - #599
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Binary files should be eliminated with some kind of automated build script
Adding binary files increase repo size
…On Sun, Feb 22, 2026, 2:18 PM Srishti Dutta ***@***.***> wrote:
Problem
The app crashed immediately on macOS showing a black screen. Three issues
were identified and fixed:
1.
*tc_helper.framework not built or bundled for macOS* — the app uses a
Rust native library via flutter_rust_bridge. It was never compiled for
macOS (aarch64-apple-darwin), so dlopen failed at startup with an
unhandled exception.
2.
*HomeWidget.setAppGroupId crash on macOS* — HomeWidget is an
iOS/Android-only plugin. Calling setAppGroupId on macOS threw
MissingPluginException before the UI could render.
3.
*Pod deployment target mismatch warning* — pod targets were using MACOSX_DEPLOYMENT_TARGET
= 10.11 despite the platform being set to 10.15, producing warnings on
every build.
Changes macos/Podfile
Added MACOSX_DEPLOYMENT_TARGET = '10.15' enforcement in post_install hook
for all pod targets.
macos/Frameworks/tc_helper.framework/tc_helper
Pre-built Rust tc_helper dylib for aarch64-apple-darwin, packaged as a
.framework.
macos/Runner.xcodeproj/project.pbxproj
Added *Embed Rust Framework* shell script build phase that:
- Auto-compiles the Rust library via cargo build if the binary is
missing or source has changed
- Embeds tc_helper.framework into Contents/Frameworks/ of the app
bundle at build time
lib/app/utils/app_settings/app_settings.dart
Guarded HomeWidget.setAppGroupId with Platform.isIOS || Platform.isAndroid
to skip the call on macOS.
Test environment
- macOS 15.5 (Apple Silicon)
- Flutter 3.41.2 stable
- Xcode 16.4
- Rust 1.93.0, target aarch64-apple-darwin
Result
App builds cleanly (flutter build macos) and renders UI correctly on
macOS.
------------------------------
You can view, comment on, or merge this pull request online at:
#599
Commit Summary
- 4fa167a
<4fa167a>
enforced MACOSX_DEPLOYMENT_TARGET 10.15 for all pod targets
- 5a406c9
<5a406c9>
added Rust tc_helper framework for macOS and Xcode build phase
- b71efce
<b71efce>
guarded HomeWidget.setAppGroupId behind mobile platform check
File Changes
(7 files
<https://github.com/CCExtractor/taskwarrior-flutter/pull/599/files>)
- *M* lib/app/utils/app_settings/app_settings.dart
<https://github.com/CCExtractor/taskwarrior-flutter/pull/599/files#diff-807e9bff176cec55cd0877f311f9f11d29e2348fb92b7e5f116223a8635b2547>
(6)
- *M* macos/Flutter/GeneratedPluginRegistrant.swift
<https://github.com/CCExtractor/taskwarrior-flutter/pull/599/files#diff-e0a0e103075365af1fb906fa24889fc5ed61c2020ef2efeb23fe020123abc325>
(2)
- *A* macos/Frameworks/tc_helper.framework/tc_helper
<https://github.com/CCExtractor/taskwarrior-flutter/pull/599/files#diff-360346ade61d7c914c1d84307dad225d71f68e2564a0a950dbfdd3c330aa8fc5>
(0)
- *M* macos/Podfile
<https://github.com/CCExtractor/taskwarrior-flutter/pull/599/files#diff-f884afd426938fe6ea5d1b0089a5feddfc356659592f068b3b28cde8e7bbfd61>
(5)
- *M* macos/Podfile.lock
<https://github.com/CCExtractor/taskwarrior-flutter/pull/599/files#diff-c040557dce7feadea382f3371962ee256cf2d504db3e0fcaceb8d0566a8db1ee>
(18)
- *M* macos/Runner.xcodeproj/project.pbxproj
<https://github.com/CCExtractor/taskwarrior-flutter/pull/599/files#diff-ec40d5406d2e5b54c265f64285bf1f073febb06b92a906239f8905a6244e68ef>
(27)
- *M* pubspec.lock
<https://github.com/CCExtractor/taskwarrior-flutter/pull/599/files#diff-e125d55a387d4b24048735f9ca6508c4e860f5ca1f3242edfd9df27e7d8a7af0>
(108)
Patch Links:
- https://github.com/CCExtractor/taskwarrior-flutter/pull/599.patch
- https://github.com/CCExtractor/taskwarrior-flutter/pull/599.diff
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Added post_install hook in Podfile to set MACOSX_DEPLOYMENT_TARGET to 10.15 for every pod target, eliminating the deployment target mismatch warning during macOS builds.
Added 'Build and Embed Rust Framework' shell script build phase to the Xcode project that compiles the tc_helper Rust library from source on every build using cargo and embeds it into the app bundle. - Runs cargo build --release --target aarch64-apple-darwin - Packages output as tc_helper.framework and copies to app bundle - Errors with a clear message if Rust/cargo is not installed - Added Frameworks/tc_helper.framework/tc_helper to .gitignore so the compiled binary is never committed
HomeWidget.setAppGroupId is only available on iOS and Android. Calling it on macOS threw MissingPluginException, crashing the app before the UI could render. Added a Platform.isIOS || Platform.isAndroid guard so the call is skipped on macOS and other desktop platforms.
📝 Walkthrough
WalkthroughChanges introduce Rust framework integration for macOS builds, update platform deployment target from 10.14 to 10.15, register the app_links plugin on macOS, and add platform-specific guards to Dart initialization code. Changes
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes Poem🚥 Pre-merge checks | ✅ 2 | ❌ 1 ❌ Failed checks (1 warning)
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Actionable comments posted: 1
🧹 Nitpick comments (2)macos/Runner.xcodeproj/project.pbxproj (1)🤖 Prompt for all review comments with AI agentslib/app/utils/app_settings/app_settings.dart (1)369-382: Build phase is configured to run every build.
alwaysOutOfDate = 1 with empty inputs forces reruns and adds avoidable build latency for local iteration.
♻️ Suggested optimization🤖 Prompt for AI Agents- alwaysOutOfDate = 1; + alwaysOutOfDate = 0; @@ - inputPaths = ( - ); + inputPaths = ( + "$(SRCROOT)/../rust/Cargo.toml", + "$(SRCROOT)/../rust/Cargo.lock", + );Verify each finding against the current code and only fix it if needed. In `@macos/Runner.xcodeproj/project.pbxproj` around lines 369 - 382, The "Build and Embed Rust Framework" run phase is forced to rerun every build because alwaysOutOfDate = 1 and there are no declared inputs; change this by removing or setting alwaysOutOfDate to 0 and/or add proper input paths or inputFileListPaths that represent the Rust framework artifacts so Xcode can detect up-to-date state; update the run phase identified by the name "Build and Embed Rust Framework" (and adjust inputPaths, inputFileListPaths, or outputFileListPaths/outputPaths as needed) so the build phase only executes when its inputs actually change.1-1: Replace dart:io import with Flutter-aware platform detection to prevent web-build incompatibility.
The Platform.isIOS || Platform.isAndroid check will fail if this app is built for web. Use kIsWeb and defaultTargetPlatform instead to maintain platform-specific behavior without the direct dart:io dependency.
♻️ Suggested change🤖 Prompt for AI Agents-import 'dart:io'; +import 'package:flutter/foundation.dart'; @@ - if (Platform.isIOS || Platform.isAndroid) { + if (!kIsWeb && + (defaultTargetPlatform == TargetPlatform.iOS || + defaultTargetPlatform == TargetPlatform.android)) { await HomeWidget.setAppGroupId("group.taskwarrior"); }Verify each finding against the current code and only fix it if needed. In `@lib/app/utils/app_settings/app_settings.dart` at line 1, Replace the dart:io import and any usage of Platform.isIOS/Platform.isAndroid in app_settings.dart with Flutter-aware checks: remove "import 'dart:io';", import "package:flutter/foundation.dart" and use kIsWeb to short-circuit web builds, and use defaultTargetPlatform == TargetPlatform.iOS / TargetPlatform.android where you previously used Platform.isIOS / Platform.isAndroid; update any functions or conditionals referencing Platform to use these symbols (kIsWeb, defaultTargetPlatform, TargetPlatform) to avoid web build failures.
Verify each finding against the current code and only fix it if needed. Inline comments: In `@macos/Runner.xcodeproj/project.pbxproj`: - Around line 367-386: The build script in the PBXShellScriptBuildPhase named "Build and Embed Rust Framework" hardcodes the Rust target triple to aarch64-apple-darwin (RUST_LIB and cargo build) which will fail on Intel macs; change the shellScript to detect the build architecture (prefer $ARCHS if available otherwise fall back to uname -m), map that to a TARGET_TRIPLE (e.g., aarch64-apple-darwin for arm64, x86_64-apple-darwin for Intel), replace the hardcoded aarch64-apple-darwin occurrences with $TARGET_TRIPLE (RUST_LIB path, rustup target add, and cargo build commands), and ensure RUST_DIR, FRAMEWORK_DIR and FRAMEWORK_DST logic remains the same so the correct dylib is copied and codesigned for the detected architecture. --- Nitpick comments: In `@lib/app/utils/app_settings/app_settings.dart`: - Line 1: Replace the dart:io import and any usage of Platform.isIOS/Platform.isAndroid in app_settings.dart with Flutter-aware checks: remove "import 'dart:io';", import "package:flutter/foundation.dart" and use kIsWeb to short-circuit web builds, and use defaultTargetPlatform == TargetPlatform.iOS / TargetPlatform.android where you previously used Platform.isIOS / Platform.isAndroid; update any functions or conditionals referencing Platform to use these symbols (kIsWeb, defaultTargetPlatform, TargetPlatform) to avoid web build failures. In `@macos/Runner.xcodeproj/project.pbxproj`: - Around line 369-382: The "Build and Embed Rust Framework" run phase is forced to rerun every build because alwaysOutOfDate = 1 and there are no declared inputs; change this by removing or setting alwaysOutOfDate to 0 and/or add proper input paths or inputFileListPaths that represent the Rust framework artifacts so Xcode can detect up-to-date state; update the run phase identified by the name "Build and Embed Rust Framework" (and adjust inputPaths, inputFileListPaths, or outputFileListPaths/outputPaths as needed) so the build phase only executes when its inputs actually change.
ℹ️ Review info ⚙️ Run configuration
Configuration used: defaults
Review profile: CHILL
Plan: Pro
Run ID: e93caa70-1629-441b-88bb-bb48d16adac3
📥 CommitsReviewing files that changed from the base of the PR and between 66aef29 and b40f0c6.
⛔ Files ignored due to path filters (2)- macos/Podfile.lock is excluded by !**/*.lock
- pubspec.lock is excluded by !**/*.lock
- lib/app/utils/app_settings/app_settings.dart
- macos/.gitignore
- macos/Flutter/GeneratedPluginRegistrant.swift
- macos/Podfile
- macos/Runner.xcodeproj/project.pbxproj
Sorry, something went wrong.
| B47EAE0DA7514E2B9140D50B /* Build and Embed Rust Framework */ = { | ||
| isa = PBXShellScriptBuildPhase; | ||
| alwaysOutOfDate = 1; | ||
| buildActionMask = 2147483647; | ||
| files = ( | ||
| ); | ||
| inputFileListPaths = ( | ||
| ); | ||
| inputPaths = ( | ||
| ); | ||
| name = "Build and Embed Rust Framework"; | ||
| outputFileListPaths = ( | ||
| ); | ||
| outputPaths = ( | ||
| "$(BUILT_PRODUCTS_DIR)/$(FRAMEWORKS_FOLDER_PATH)/tc_helper.framework/tc_helper", | ||
| ); | ||
| runOnlyForDeploymentPostprocessing = 0; | ||
| shellPath = /bin/sh; | ||
| shellScript = "set -e\n\nRUST_DIR=\"$SRCROOT/../rust\"\nFRAMEWORK_DIR=\"$SRCROOT/Frameworks/tc_helper.framework\"\nRUST_LIB=\"$RUST_DIR/target/aarch64-apple-darwin/release/libtc_helper.dylib\"\n\nexport PATH=\"$HOME/.cargo/bin:$PATH\"\n\nif ! command -v cargo &>/dev/null; then\n echo 'error: cargo not found. Install Rust from https://rustup.rs' >&2\n exit 1\nfi\n\nrustup target add aarch64-apple-darwin 2>/dev/null || true\ncargo build --release --target aarch64-apple-darwin --manifest-path \"$RUST_DIR/Cargo.toml\"\n\nmkdir -p \"$FRAMEWORK_DIR\"\ncp -f \"$RUST_LIB\" \"$FRAMEWORK_DIR/tc_helper\"\ninstall_name_tool -id \"@rpath/tc_helper.framework/tc_helper\" \"$FRAMEWORK_DIR/tc_helper\"\n\nFRAMEWORK_DST=\"$BUILT_PRODUCTS_DIR/$FRAMEWORKS_FOLDER_PATH/tc_helper.framework\"\nmkdir -p \"$FRAMEWORK_DST\"\ncp -f \"$FRAMEWORK_DIR/tc_helper\" \"$FRAMEWORK_DST/tc_helper\"\ncodesign --force --sign \"$EXPANDED_CODE_SIGN_IDENTITY\" --preserve-metadata=identifier,entitlements \"$FRAMEWORK_DST/tc_helper\" 2>/dev/null || true\n"; | ||
| }; |
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⚠️ Potential issue | 🟠 Major
🧩 Analysis chain🏁 Script executed:
#!/bin/bash
# Verify hardcoded Rust target and whether Intel macOS builds are expected
echo "=== Searching for arch references in xcodeproj ==="
rg -n "aarch64-apple-darwin|x86_64-apple-darwin|NATIVE_ARCH|CURRENT_ARCH" macos/Runner.xcodeproj/project.pbxproj | head -20
echo -e "\n=== Checking GitHub workflows for macOS builds ==="
if [ -d .github/workflows ]; then
rg -n "macos|x86_64|arm64|runs-on" .github/workflows -A 2 -B 2 | head -50
else
echo "No .github/workflows directory found"
fi
echo -e "\n=== Checking project.pbxproj for ARCHS or VALID_ARCHS settings ==="
rg -n "ARCHS|VALID_ARCHS|Build and Embed Rust" macos/Runner.xcodeproj/project.pbxproj | head -30Repository: CCExtractor/taskwarrior-flutter
Length of output: 2235
🏁 Script executed:
#!/bin/bash
# Check project documentation for macOS architecture support
echo "=== Checking README for architecture mentions ==="
find . -maxdepth 2 -name "README*" -o -name "readme*" | xargs cat 2>/dev/null | grep -i "macos\|intel\|x86\|arm64\|aarch64\|architecture" -A 2 -B 2 | head -30
echo -e "\n=== Checking flutter/pubspec.yaml for platform config ==="
if [ -f pubspec.yaml ]; then
cat pubspec.yaml | grep -i "macos\|platform" -A 5 -B 5
fi
echo -e "\n=== Checking macos/Runner.xcodeproj for build settings ==="
rg -n "ARCHS|SUPPORTED_PLATFORMS|VALID_ARCHS" macos/Runner.xcodeproj/project.pbxproj | head -20
echo -e "\n=== Check if Rust Cargo.toml mentions target support ==="
if [ -f rust/Cargo.toml ]; then
echo "=== Rust/Cargo.toml content ==="
cat rust/Cargo.toml | head -50
fi
echo -e "\n=== Check if any build scripts mention multi-arch ==="
find . -name "*.sh" -o -name "*.py" | xargs grep -l "aarch64\|x86_64\|universal" 2>/dev/nullRepository: CCExtractor/taskwarrior-flutter
Length of output: 1307
Rust framework build is hardcoded to arm64 and will break Intel macOS builds.
The script always targets aarch64-apple-darwin without checking the build environment's architecture. On Intel Macs or when building for x86_64, this will attempt to load an ARM64 dylib and fail. The Xcode project has no ARCHS or VALID_ARCHS settings to override this hardcoding. While no macOS CI is currently configured, developers on Intel Macs attempting local builds will encounter failures.
🐛 Suggested fix (arch-aware target selection)- RUST_LIB="$RUST_DIR/target/aarch64-apple-darwin/release/libtc_helper.dylib"
+ case "${NATIVE_ARCH_ACTUAL:-$CURRENT_ARCH}" in
+ arm64) RUST_TARGET="aarch64-apple-darwin" ;;
+ x86_64) RUST_TARGET="x86_64-apple-darwin" ;;
+ *)
+ echo "error: unsupported macOS arch: ${NATIVE_ARCH_ACTUAL:-$CURRENT_ARCH}" >&2
+ exit 1
+ ;;
+ esac
+ RUST_LIB="$RUST_DIR/target/$RUST_TARGET/release/libtc_helper.dylib"
@@
- rustup target add aarch64-apple-darwin 2>/dev/null || true
- cargo build --release --target aarch64-apple-darwin --manifest-path "$RUST_DIR/Cargo.toml"
+ rustup target add "$RUST_TARGET" 2>/dev/null || true
+ cargo build --release --target "$RUST_TARGET" --manifest-path "$RUST_DIR/Cargo.toml"‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| B47EAE0DA7514E2B9140D50B /* Build and Embed Rust Framework */ = { | |
| isa = PBXShellScriptBuildPhase; | |
| alwaysOutOfDate = 1; | |
| buildActionMask = 2147483647; | |
| files = ( | |
| ); | |
| inputFileListPaths = ( | |
| ); | |
| inputPaths = ( | |
| ); | |
| name = "Build and Embed Rust Framework"; | |
| outputFileListPaths = ( | |
| ); | |
| outputPaths = ( | |
| "$(BUILT_PRODUCTS_DIR)/$(FRAMEWORKS_FOLDER_PATH)/tc_helper.framework/tc_helper", | |
| ); | |
| runOnlyForDeploymentPostprocessing = 0; | |
| shellPath = /bin/sh; | |
| shellScript = "set -e\n\nRUST_DIR=\"$SRCROOT/../rust\"\nFRAMEWORK_DIR=\"$SRCROOT/Frameworks/tc_helper.framework\"\nRUST_LIB=\"$RUST_DIR/target/aarch64-apple-darwin/release/libtc_helper.dylib\"\n\nexport PATH=\"$HOME/.cargo/bin:$PATH\"\n\nif ! command -v cargo &>/dev/null; then\n echo 'error: cargo not found. Install Rust from https://rustup.rs' >&2\n exit 1\nfi\n\nrustup target add aarch64-apple-darwin 2>/dev/null || true\ncargo build --release --target aarch64-apple-darwin --manifest-path \"$RUST_DIR/Cargo.toml\"\n\nmkdir -p \"$FRAMEWORK_DIR\"\ncp -f \"$RUST_LIB\" \"$FRAMEWORK_DIR/tc_helper\"\ninstall_name_tool -id \"@rpath/tc_helper.framework/tc_helper\" \"$FRAMEWORK_DIR/tc_helper\"\n\nFRAMEWORK_DST=\"$BUILT_PRODUCTS_DIR/$FRAMEWORKS_FOLDER_PATH/tc_helper.framework\"\nmkdir -p \"$FRAMEWORK_DST\"\ncp -f \"$FRAMEWORK_DIR/tc_helper\" \"$FRAMEWORK_DST/tc_helper\"\ncodesign --force --sign \"$EXPANDED_CODE_SIGN_IDENTITY\" --preserve-metadata=identifier,entitlements \"$FRAMEWORK_DST/tc_helper\" 2>/dev/null || true\n"; | |
| }; | |
| B47EAE0DA7514E2B9140D50B /* Build and Embed Rust Framework */ = { | |
| isa = PBXShellScriptBuildPhase; | |
| alwaysOutOfDate = 1; | |
| buildActionMask = 2147483647; | |
| files = ( | |
| ); | |
| inputFileListPaths = ( | |
| ); | |
| inputPaths = ( | |
| ); | |
| name = "Build and Embed Rust Framework"; | |
| outputFileListPaths = ( | |
| ); | |
| outputPaths = ( | |
| "$(BUILT_PRODUCTS_DIR)/$(FRAMEWORKS_FOLDER_PATH)/tc_helper.framework/tc_helper", | |
| ); | |
| runOnlyForDeploymentPostprocessing = 0; | |
| shellPath = /bin/sh; | |
| shellScript = "set -e\n\nRUST_DIR=\"$SRCROOT/../rust\"\nFRAMEWORK_DIR=\"$SRCROOT/Frameworks/tc_helper.framework\"\n\ncase \"${NATIVE_ARCH_ACTUAL:-$CURRENT_ARCH}\" in\n arm64) RUST_TARGET=\"aarch64-apple-darwin\" ;;\n x86_64) RUST_TARGET=\"x86_64-apple-darwin\" ;;\n *)\n echo \"error: unsupported macOS arch: ${NATIVE_ARCH_ACTUAL:-$CURRENT_ARCH}\" >&2\n exit 1\n ;;\nesac\n\nRUST_LIB=\"$RUST_DIR/target/$RUST_TARGET/release/libtc_helper.dylib\"\n\nexport PATH=\"$HOME/.cargo/bin:$PATH\"\n\nif ! command -v cargo &>/dev/null; then\n echo 'error: cargo not found. Install Rust from https://rustup.rs' >&2\n exit 1\nfi\n\nrustup target add \"$RUST_TARGET\" 2>/dev/null || true\ncargo build --release --target \"$RUST_TARGET\" --manifest-path \"$RUST_DIR/Cargo.toml\"\n\nmkdir -p \"$FRAMEWORK_DIR\"\ncp -f \"$RUST_LIB\" \"$FRAMEWORK_DIR/tc_helper\"\ninstall_name_tool -id \"@rpath/tc_helper.framework/tc_helper\" \"$FRAMEWORK_DIR/tc_helper\"\n\nFRAMEWORK_DST=\"$BUILT_PRODUCTS_DIR/$FRAMEWORKS_FOLDER_PATH/tc_helper.framework\"\nmkdir -p \"$FRAMEWORK_DST\"\ncp -f \"$FRAMEWORK_DIR/tc_helper\" \"$FRAMEWORK_DST/tc_helper\"\ncodesign --force --sign \"$EXPANDED_CODE_SIGN_IDENTITY\" --preserve-metadata=identifier,entitlements \"$FRAMEWORK_DST/tc_helper\" 2>/dev/null || true\n"; | |
| }; |
Verify each finding against the current code and only fix it if needed. In `@macos/Runner.xcodeproj/project.pbxproj` around lines 367 - 386, The build script in the PBXShellScriptBuildPhase named "Build and Embed Rust Framework" hardcodes the Rust target triple to aarch64-apple-darwin (RUST_LIB and cargo build) which will fail on Intel macs; change the shellScript to detect the build architecture (prefer $ARCHS if available otherwise fall back to uname -m), map that to a TARGET_TRIPLE (e.g., aarch64-apple-darwin for arm64, x86_64-apple-darwin for Intel), replace the hardcoded aarch64-apple-darwin occurrences with $TARGET_TRIPLE (RUST_LIB path, rustup target add, and cargo build commands), and ensure RUST_DIR, FRAMEWORK_DIR and FRAMEWORK_DST logic remains the same so the correct dylib is copied and codesigned for the detected architecture.
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remove .lock files from commits |
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Reviewers
At least 1 approving review is required to merge this pull request.
Problem
The app crashed immediately on macOS showing a black screen. Three issues were identified and fixed:
tc_helper.framework not built or bundled for macOS — the app uses a Rust native library via flutter_rust_bridge. It was never compiled for macOS (aarch64-apple-darwin), so dlopen failed at startup with an unhandled exception.
HomeWidget.setAppGroupId crash on macOS — HomeWidget is an iOS/Android-only plugin. Calling setAppGroupId on macOS threw MissingPluginException before the UI could render.
Pod deployment target mismatch warning — pod targets were using MACOSX_DEPLOYMENT_TARGET = 10.11 despite the platform being set to 10.15, producing warnings on every build.
Changes
macos/Podfile
Added MACOSX_DEPLOYMENT_TARGET = '10.15' enforcement in post_install hook for all pod targets.
macos/Frameworks/tc_helper.framework/tc_helper
Pre-built Rust tc_helper dylib for aarch64-apple-darwin, packaged as a .framework.
macos/Runner.xcodeproj/project.pbxproj
Added Embed Rust Framework shell script build phase that:
lib/app/utils/app_settings/app_settings.dart
Guarded HomeWidget.setAppGroupId with Platform.isIOS || Platform.isAndroid to skip the call on macOS.
Test environment
Result
App builds cleanly (flutter build macos) and renders UI correctly on macOS.
Summary by CodeRabbit
Requirements
New Features
Improvements