Tool information
Tool names: Dokany and macFUSE
Licenses: Dokany LGPL/MIT components; macFUSE custom BSD-style license with a commercial binary redistribution restriction requiring prior written permission.
Requested versions: Dokany 2.3.1.1000 and macFUSE 5.3.3.
Approximate download size: Dokany MSI 9 MB; macFUSE DMG 16 MB.
Why
GitHub Drives and similar block-image workflows can expose virtual disk images lazily on hosted runners instead of downloading full images before attachment:
- Windows: Dokany projects a VHD file that
Mount-VHD can attach.
- macOS: macFUSE projects a raw disk image that
hdiutil can attach.
This enables on-demand block hydration and dirty-block tracking for large persisted build volumes.
Validation
A hosted-runner smoke test is available at https://github.com/0b01/runner-images/actions/runs/33017792054:
windows-2025: Dokany installed in seconds; signed dokan2.sys registered and running without reboot.macos-15-intel: macFUSE 5.3.3 package and Developer ID validated, but loading failed because system software approval is unavailable at workflow runtime. Image-time approval/security configuration is required.
Requested images
- GitHub Actions
- Windows Server 2022
- Windows Server 2025
- Windows Server 2025 with Visual Studio 2026
- macOS 15 Intel
macOS ARM and macOS 26 are excluded from the initial proof because they require additional Reduced Security/system-extension work.
Installation
Dokany can be installed silently from the checksum-pinned upstream MSI. macFUSE can be installed from its checksum-pinned DMG, but redistribution and image-time approval require explicit review and permission.
Runtime install time: Dokany approximately 4 seconds in the smoke run; macFUSE package installation approximately 15 seconds, but runtime activation failed.
I am willing to submit a draft proof-of-concept with installer scripts, Pester validation, image template entries, and software report integration.
Tool information
Tool names: Dokany and macFUSE
Licenses: Dokany LGPL/MIT components; macFUSE custom BSD-style license with a commercial binary redistribution restriction requiring prior written permission.
Requested versions: Dokany 2.3.1.1000 and macFUSE 5.3.3.
Approximate download size: Dokany MSI 9 MB; macFUSE DMG 16 MB.
Why
GitHub Drives and similar block-image workflows can expose virtual disk images lazily on hosted runners instead of downloading full images before attachment:
Mount-VHDcan attach.hdiutilcan attach.This enables on-demand block hydration and dirty-block tracking for large persisted build volumes.
Validation
A hosted-runner smoke test is available at https://github.com/0b01/runner-images/actions/runs/33017792054:
windows-2025: Dokany installed in seconds; signeddokan2.sysregistered and running without reboot.macos-15-intel: macFUSE 5.3.3 package and Developer ID validated, but loading failed because system software approval is unavailable at workflow runtime. Image-time approval/security configuration is required.Requested images
macOS ARM and macOS 26 are excluded from the initial proof because they require additional Reduced Security/system-extension work.
Installation
Dokany can be installed silently from the checksum-pinned upstream MSI. macFUSE can be installed from its checksum-pinned DMG, but redistribution and image-time approval require explicit review and permission.
Runtime install time: Dokany approximately 4 seconds in the smoke run; macFUSE package installation approximately 15 seconds, but runtime activation failed.
I am willing to submit a draft proof-of-concept with installer scripts, Pester validation, image template entries, and software report integration.