KDE Connect: https://kdeconnect.kde.org/

I also use Resilio Sync. It’s not open source software, but it’s self-hosted https://www.resilio.com/

There are also open source sync services, like nextcloud or syncthing

• Find an open-source software that you’re interested in, but your main distro doesn’t provide it in the official repo. Be a packager for this software.
• Open your distro’s wiki, rewrite (or contribute, if already good enough) a page or section.
• Try the bleeding-edge version (or very-early testing) of your favourite distro, and submit some test results, regarding to your hardware.

IMHO these tasks are interesting, could learn a lot from these tasks, and other linux users could benefit from these work

Also: I think rpm-ostree only supports rpm-based packages, tho; right?

Can I install .deb software too?

I don’t think rpm-ostree could support .deb softwares, just like dnf/yum can’t support deb packages.

Can you share your use case for trying to install a deb package in Fedora? I’m just curious.

And is there any kind of system-as-a-config-file kind of solution available like in NixOS or blendOS?

Good question. I only have a few computers, so I had never considered about it.

While I’ve looked into Fedora Silverblue, that distro is limited to only install Flatpaks, which is fine for “apps”, but seems to be more of a problem with managing system- and CLI tools.

No. Your understanding to Fedora Silverblue is wrong. I can just run rpm-ostree install package.name in Silverblue, like other Fedora spins. The small disadvantage is that I need to reboot to apply this update. (re-construct)

but doesn’t that result in new A/B snapshots, or something like that?

Well, you can call it snapshots, but there is no need to think about it. In most cases, the system points to the newest snapshot (deployment 0). If a rollback is needed, I can pin to the older deployments. When a major change is to be applied (Like bump Fedora version), I’d manually mark the current deployment as dont-auto-delete.

Sure, but I’d like to have a more seamless experience, i.e. not having to open/start any “containers” or something like that.

I never used toolbox in my Fedora Silverblue system. I feel that I can’t tell the difference between using Silverblue and the default Fedora spin

How about creating an app password? It may let you by-pass the 2FA https://support.google.com/accounts/answer/185833?hl=en#

My solution is not ideal:

I created a directory, called ~/config_sync. I create sym links for config files, like ~/.bashtc to ~/config_sync/bashrc

However, I need to record the sym links I’ve created, and repeat this process on new machines

I think Fedora finds a good balance that

1. All components are OSS by default
2. It’s super easy to install RPMFusion packages when needed

Can you share the details of your procedure? Besides, which distro you’re using?

I’m using Thunderbird for my outlook.office365.com email account which is managed by employer. It works perfect.

1. Set server name to outlook.office365.com and Authentication method to OAuth2
2. Thunderbird will give you a pop-up window, which let you fill in the username and password
3. My account requires DUO, and it worked smoothly too.

However, it’s also possible that your administrator has different server settings, denying the access of Thunderbird.

TLDR, I think it worth a try