The first desktop Office 365 app arrives, Ubuntu commits to current and future Raspberry Pi boards, and why the near-term future of Linux gaming looks a bit rocky.

Plus, our concerns with Google's clever long-term Fuchsia strategy.

Links:

• Microsoft Teams is now available on Linux — Starting today, Microsoft Teams is available for Linux users in public preview, enabling high quality collaboration experiences for the open source community at work and in educational institutions. Users can download the native Linux packages in .deb and .rpm formats.
• Zulip 2.1: Open source team chat — Zulip is the world’s most productive team chat software, used by thousands of teams as an alternative to Slack, HipChat, Mattermost and IRC. Zulip's unique topic-based threading combines the immediacy of chat with the asynchronous efficiency of email-style threading, and is 100% free and open source software.
• Why Zulip - The best group chat
• Updated images of Ubuntu for the Raspberry Pi 2, 3 and 4 — With the new images, USB ports are now fully functional out of the box on the 4GB RAM version of the Raspberry Pi 4.
• Eben Upton on Twitter — Raspberry Pi numbers get stale fast. We sold our thirty-millionth unit some time last week (we think Tuesday).
• Eben Upton on Twitter — The average is much closer to $35. I believe we're at pretty much exactly one billion dollars.
• Google's Fuchsia to support Chrome OS tablet 'Flapjack' — Chrome OS won’t be the only operating system this device supports, as Google’s Fuchsia OS team is also looking to support the “Flapjack” tablet.
• Flutter gathers pace
• Twitter wants to decentralize, but decentralized social network creators don’t trust it — Twitter CEO Jack Dorsey made a theoretically huge announcement: he wanted Twitter to stop being a self-contained platform and start delivering content from a decentralized system
• A decentralized Twitter would bring the company back to its past
• Twitter Makes A Bet On Protocols Over Platforms
• DXVK To Enter Maintenance Mode — Not because it's considered feature complete and bug-free, but because the main developer considers that DXVK has become a "fragile, unreliable and frustrating maintenance nightmare".
• Feral's Lead Vulkan Developer Leaves The Company For Sony
• NVIDIA Looks To Have Some Sort Of Open-Source Driver Announcement For 2020 — Start looking forward to March when NVIDIA looks to have some sort of open-source driver initiative to announce -- likely contributing more to Nouveau