Offer funds to Ladybird
This one is a bit different, but consider offering financial support to the Ladybird project.
It's arguably one of the most interesting open source projects around right now. Other privacy organisations and individuals are already viewing this project with great interest.
Also, the Proton Foundation and Proton vpn each donated a grant back in 2024.
Now, it's 2026. Two years have passed, and earlier funding has now come to fruition. The Ladybird project is about to launch an alpha release of their software. For that reason, I think the Proton Foundation and/or Proton services should consider offering another round of funds for the project.
The Ladybird project still has a great overlap in values.
What is Ladybird? Ladybird is an open source browser, which is the first browser in decades that is independent from Google.
Why fund Ladybird? With their coming alpha release, the project is more promising than ever. When it releases, I think it will break news in tech circles. The current browser landscape is dominated by Google. Before you say, "but Firefox"... Look, yes, Mozilla is a competitor, and it is a great browser, but it's still dependent on Google for funding.
I would personally argue that the browser is the most important piece of software on any device, anywhere today. The current landscape of the web is not a static. It's continuously evolving, but it's all Google owned or influenced. We can observe that Google is using its dominance to make the web less private.
There needs to be an alternative, and as much have used and still use Firefox, they are in an unfortunate marriage with Google.
For that reason I think Ladybird is an interesting contender for another round of funding.
Note: I am not affiliated with the ladybird project in any way, and I have never been in touch with the project in any way. I am just a regular guy who also cares about the web.
EDIT: Okay, there's also safari, but the point still stands.