Linux Plumbers Conference 2022

Session

Open Printing MC

14 Sept 2022, 15:00

"Meeting 1&2" (Clayton Hotel on Burlington Road)

Description

In this session we will first finalize the features and roadmap for CUPS 2.5 which has a focus on OAuth and new container/sandbox/distribution-independent-packaging support. Then we will discuss the features and roadmap for CUPS 3.0 which implements a new simplified architecture for driverless printing.

https://github.com/OpenPrinting/cups

Presentation materials

lpc-cups-2022.pdf

lpc-printing-ci-2022.pdf

lpc-printing-docs-2022.pdf

85. CUPS 2.5 and 3.0 Development

Michael Sweet (Lakeside Robotics Corporation)

14/09/2022, 15:00

In this session we will first finalize the features and roadmap for CUPS 2.5 which has a focus on OAuth and new container/sandbox/distribution-independent-packaging support. Then we will discuss the features and roadmap for CUPS 3.0 which implements a new simplified architecture for driverless printing.

https://github.com/OpenPrinting/cups

81. Testing and CI for OpenPrinting projects

Michael Sweet (Lakeside Robotics Corporation), Till Kamppeter (OpenPrinting / Canonical)

14/09/2022, 16:00

cups-filters (and also other projects on OpenPrinting) get larger and more and more complex with the time. It is always harder to overview the code and to predict the exact effects of a change, adding a feature or fixing a bug one can easily cause a regression. One tests the code but has one really tested all types of input, all settings, … As human beings easily forget we need some automated...

119. Restricting access to IPP printers with OAuth2 framework

Piotr Pawliczek (Google)

14/09/2022, 16:45

Native printing in Linux leverages Internet Printing Protocol (IPP), the standard supported by the vast majority of printers available on the market. While it is quite sufficient for personal use, it has some drawbacks for enterprise customers, such as a lack of standard, OAuth2-based
user’s authorization mechanisms necessary for print management systems. We tried to address this issue by...

99. Documentation for OpenPrinting projects

Till Kamppeter (OpenPrinting / Canonical), Aveek Basu

14/09/2022, 17:30

Good documentation is something neglected a lot in the free software world. One is driving the coding of certain projects quickly forward to get something which actually works and one can try it out. One wants to get one's new library finally released. But how should people know how to use it? Documentation! CUPS is well documented, but cups-filters (and pappl-retrofit) lack API documentation....

83. Sandboxing/Containerizing alternatives to Snap for Printer Applications or CUPS

Michael Sweet (Lakeside Robotics Corporation), Till Kamppeter (OpenPrinting / Canonical), Valentin Viennot (Canonical)

14/09/2022, 18:00

There are Snaps of CUPS and 5 Printer Applications, but Snap has also disadvantages, most prominently the one-and-only Snap Store and also that some desktop apps start up slowly. Are there alternatives to create distribution-independent packages, especially of Printer Applications? Docker? Flatpak? AppImage?...

84. 3D Printing

Michael Sweet (Lakeside Robotics Corporation), Till Kamppeter (OpenPrinting / Canonical)

3D printing gets more and more popular, not only in the industry but also in the DIYer's garages. Especially for consumers but also for professional users it would be great to have an easy workflow, so that 3D printing "just works" like conventional 2D printing. Somehow one could think about clicking "Print" in the 3D design/CAD/CAM software and the object gets printed. As we already have CUPS...