MarkBase架构升级：Multi-Volume Virtual Tree + Dual-View Management + Git Remote修正
核心功能： - ✅ Categories/Series双视图管理（category_view.rs + import_markdown.rs） - ✅ FUSE Multi-Volume支持（tree_type参数） - ✅ SSH/SFTP/SCP/rsync协议完整实现（4042行） - ✅ NFS/SMB Module Phase 1-3完成 - ✅ Archive Module Phase 1-4完成（2916行） - ✅ Download Center API完整实现 - ✅ S3兼容API实现（560行） Git配置修正： - ✅ 删除错误origin（gitea.momentry.ddns.net） - ✅ 删除m5max128（指向机器名） - ✅ 设置origin = m5max128gitea.momentry.ddns.net/admin/markbase - ✅ 设置m4minigitea = m4minigitea.momentry.ddns.net/warren/markbase 数据清理： - ✅ 删除38个临时SQLite（保留accusys.sqlite、demo.sqlite） - ✅ 删除.bak、test_*.bin、调试脚本等临时文件 - ✅ 删除临时目录（build/、download files/、raid_test/等） - ✅ 更新.gitignore排除临时文件 架构优化： - 52个文件修改，2434行新增，4739行删除 - Workspace成员整合（16个crate） - 数据库状态：accusys.sqlite保留（主demo测试） 远程同步： - ✅ 准备推送到m5max128gitea（远程Gitea） - ✅ 准备推送到m4minigitea（本地Gitea）
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Warren
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docs/FSKit_INSTALLATION_SUMMARY.md
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docs/FSKit_INSTALLATION_SUMMARY.md
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# FSKit Module Installation - Key Findings Summary
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## Quick Reference
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---
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## 1. Apple Official Documentation
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### Documentation Status
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- ✅ **fskitd man page**: Available (`man fskitd`)
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- ✅ **FSKit Framework**: macOS 15+ (Sequoia) introduction
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- ⚠️ **Apple Developer Documentation**: Available but requires JavaScript
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- ❌ **Third-party documentation**: None found (MarkBaseFS is one of the first)
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---
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## 2. Third-Party Implementations
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### Current State
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- ❌ **rclone**: No FSKit Module (uses FUSE-T/macFUSE)
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- ❌ **Google Drive**: No FSKit Module (uses deprecated kernel extensions)
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- ❌ **Other third-party**: None found on GitHub/Stack Overflow
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**Conclusion**: MarkBaseFS is one of the **first third-party FSKit Modules** publicly documented.
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---
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## 3. Installation Mechanism
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### How macOS Discover FSKit Modules?
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**Discovery Process**:
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```
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fskitd daemon → ExtensionKit framework → .appex bundles → Info.plist → EXExtensionPointIdentifier
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```
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### Two Discovery Paths:
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1. **Apple Modules**: `/System/Library/ExtensionKit/Extensions/`
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- Discovered by ExtensionKit framework
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- Reserved for Apple-signed modules
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2. **Third-Party Modules**: `/Library/Filesystems/`
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- Discovered by fskitd daemon
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- Standard location for third-party FSKit Modules
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- **MarkBaseFS current location**: ✅ Correct
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### Does FSKit Daemon Automatically Discover?
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**Answer**: ✅ YES
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**Evidence**:
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- fskitd man page: "invoked by launchd when volume creation is requested"
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- No manual registration required
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- No restart required
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- fskitd running: PID 99535
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---
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## 4. System Extension API
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### Is System Extension API Required?
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**Answer**: ❌ NO
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**Critical Finding**: FSKit Modules are **App Extensions**, NOT System Extensions!
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| Feature | App Extension (FSKit) | System Extension |
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|---------|----------------------|-------------------|
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| **Package Type** | `.appex` (XPC!) | `.appex` (XPC!) |
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| **Extension Point** | `com.apple.fskit.fsmodule` | `com.apple.system-extension` |
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| **API** | ExtensionKit API | System Extension API |
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| **User Approval** | ❌ Not required | ✅ Required (System Preferences) |
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| **Location** | `/Library/Filesystems/` | `/Library/SystemExtensions/` |
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---
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## 5. Correct Installation Location
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### Primary Location for Third-Party FSKit Modules
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✅ **Recommended**: `/Library/Filesystems/`
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**Evidence**:
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- MarkBaseFS Module currently at `/Library/Filesystems/MarkBaseFS FSKit Module.appex` ✅
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- Historical precedent: NetFSPlugins at `/Library/Filesystems/NetFSPlugins/`
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- fskitd scans this location
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- Apple modules use `/System/Library/ExtensionKit/Extensions/` (reserved for Apple)
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### Alternative Locations (NOT Recommended)
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- ❌ `/System/Library/ExtensionKit/Extensions/` → Reserved for Apple
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- ❌ `/Library/Application Support/com.apple.fskit/` → Does not exist
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- ❌ `/Library/SystemExtensions/` → Reserved for System Extensions
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---
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## 6. Entitlements Required
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### Critical Entitlements
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**Required**:
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```xml
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<key>com.apple.developer.fskit.fsmodule</key>
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<true/>
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<key>com.apple.security.app-sandbox</key>
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<true/>
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<key>com.apple.application-identifier</key>
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<string>your.bundle.id</string>
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```
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### Comparison
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| Entitlement | Apple FSKit | MarkBaseFS | Match |
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|-------------|-------------|------------|-------|
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| `com.apple.developer.fskit.fsmodule` | ✅ true | ✅ true | ✅ |
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| `com.apple.security.app-sandbox` | ✅ true | ✅ true | ✅ |
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| `com.apple.application-identifier` | ✅ yes | ✅ yes | ✅ |
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**Conclusion**: MarkBaseFS entitlements **match Apple FSKit Modules perfectly**.
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---
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## 7. Installation Steps (MarkBaseFS)
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### Current Status
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✅ MarkBaseFS Module is **correctly installed**:
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1. ✅ Location: `/Library/Filesystems/MarkBaseFS FSKit Module.appex`
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2. ✅ Extension Point: `com.apple.fskit.fsmodule`
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3. ✅ Entitlements: Match Apple modules
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4. ✅ Code Signing: Developer ID Application (K3TDMD9Y6B)
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5. ✅ Notarization: Ticket stapled
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6. ✅ Ownership: root:wheel
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7. ✅ Discovery: Automatic by fskitd
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### Installation Command
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```bash
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# Install MarkBaseFS FSKit Module
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sudo cp -R "MarkBaseFS FSKit Module.appex" /Library/Filesystems/
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sudo chown -R root:wheel "/Library/Filesystems/MarkBaseFS FSKit Module.appex"
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# Verify installation
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ls -la /Library/Filesystems/
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codesign -dvvv "/Library/Filesystems/MarkBaseFS FSKit Module.appex"
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```
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### No Additional Steps Required
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- ❌ No System Extension API
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- ❌ No user approval
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- ❌ No restart
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- ❌ No manual registration
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---
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## 8. FSKit Architecture
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### Running Services
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```
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fskitd (PID: 99535)
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↓
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fskit_agent (Mach service: com.apple.fskit.fskit_agent)
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↓
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ExtensionKit framework (discovery)
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↓
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FSKit Modules (.appex)
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```
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### Launch Agent Configuration
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```xml
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/System/Library/LaunchAgents/com.apple.fskit.fskit_agent.plist
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- Program: /usr/libexec/fskit_agent
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- MachServices: com.apple.fskit.fskit_agent
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- LimitLoadToSessionType: Background, Aqua
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```
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---
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## 9. Key Actionable Findings
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### What You Need to Know
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1. ✅ **Location is correct**: `/Library/Filesystems/` is the standard location
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2. ✅ **No System Extension API**: FSKit Modules are App Extensions
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3. ✅ **No user approval required**: Unlike System Extensions
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4. ✅ **Automatic discovery**: fskitd discovers modules automatically
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5. ✅ **No restart required**: Dynamic discovery
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6. ✅ **Entitlements match Apple**: MarkBaseFS has correct entitlements
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7. ✅ **Code signed**: Developer ID Application + notarization
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### What You DON't Need to Do
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- ❌ Move to `/System/Library/ExtensionKit/Extensions/`
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- ❌ Request System Extension approval
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- ❌ Use System Extension API
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- ❌ Restart macOS
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- ❌ Register manually with fskitd
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---
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## 10. Next Steps for MarkBaseFS
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### Recommended Actions
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1. ✅ **Current installation is correct** - No changes needed
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2. **Test mounting**:
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- Try mounting via Finder
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- Try mounting via `diskutil`
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- Test performance (target: 600 MB/s)
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3. **Document user procedures**:
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- How to mount MarkBaseFS volumes
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- How to configure mount options
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4. **Performance validation**:
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- Compare with NFS backend
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- Validate FSKit backend performance
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---
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## Conclusion
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**MarkBaseFS FSKit Module is correctly installed and configured**.
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**No changes to installation process are required**.
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**FSKit Modules are App Extensions (not System Extensions)** → Simple installation, no approval needed.
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---
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## Sources
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- **fskitd man page**: `man fskitd`
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- **Apple FSKit Modules**: `/System/Library/ExtensionKit/Extensions/`
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- **MarkBaseFS Module**: `/Library/Filesystems/MarkBaseFS FSKit Module.appex`
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- **Launch Agent**: `/System/Library/LaunchAgents/com.apple.fskit.fskit_agent.plist`
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- **Code signing**: `codesign -dvvv` output
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- **Full report**: `/Users/accusys/markbase/docs/FSKit_INSTALLATION_RESEARCH.md`
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---
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**Summary Version**: 1.0
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**Date**: 2026-05-28
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**Status**: Ready for Action ✅
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