Welcome to the LWN.net Weekly Edition for June 6, 2019

• Fun with LEDs and CircuitPython: a PyCon talk on the joys of hardware-level programming in Python.
• Seeking consensus on dh: the Debian project debates mandating the use of a package-building helper.
• A ring buffer for epoll: a proposed scalability improvement for epoll that inevitably adds another ring buffer to the kernel API.
• Yet another try for fs-verity: a reworked file-protection scheme that appears to have addressed the biggest concerns raised by its predecessors.
• How many kernel test frameworks?: is the kernel getting too many separate test frameworks?
• SIGnals from KubeCon: a pair of KubeCon sessions describing the work of two Kubernetes special interest groups.

This week's edition also includes these inner pages:

• Brief items: Brief news items from throughout the community.
• Announcements: Newsletters, conferences, security updates, patches, and more.

Please enjoy this week's edition, and, as always, thank you for supporting LWN.net.