• Developer guide
• Imaging your device with Cros Flash
• Install packages to your device with Cros Deploy
• Bypassing tests on a per-project basis

• http://www.chromium.org/developers/tree-sheriffs/sheriff-details-chromium-os

For Build Contributors and other resources

• Licensing for Chromium OS Package Owners
  
• Licensing for Chromium OS Developers
  

• Portage Build and FAQ
• Portage Package Upgrade Initiative
• Portage Package Status Spreadsheet
• Build hacking
• Chroot versioning (chroot version hooks)
• Clearing all binaries (e.g. for a toolchain revert)

• cbuildbot Overview
• Buildbot Configure/Set up (Chrome Infra guide)
• Commit Queue overview
• CBuildbot
• Commit Queue
• Local Trybot
• Remote trybot
• Debugging with gdb in the Golo

• Build-Tools
• Build-Tools-Cbuildbot (file new issue)
• Build-Tools-Paygen (file new issue)
• Build-Tools-Portage
• Build-Tools-Pushlive (file new issue)
• Build-Tools-SimpleChrome
• Build-Tools-Trybot
• Build-Tools label=stats (file new issue)
• Cr-OS-Packages

Or file a generic Build issue to be triaged by the build team at goto.google.com/cros-build-ticket.

• Build FAQ