Syncthing encrypts the data, so it will be encrypted when being transferred. However, Aegis can export the vault into an encrypted file, too. So the vault file you will be transferring over an encrypted channel is encrypted itself as well. That means that the vault is secure even when at rest on some device.
It is way better now, but it is still a work-in-progress, especially regarding some more advanced features (none of which I found myself missing when on trips) and some polishing (not enough man-power to polish everything as of now).
I am going on trips with Anytype as well. Worked fantastically for my last two week-long trips. Relatively quickly, you can prepare on your PC an itinerary with files such as boarding passes, tickets, both as a normal file and embedded images to show at gates and similar. You can copy-paste e-mails, information from the web, links (URLs, etc. with additional context). Prepare for your travels, tick off things to do before leaving for your trip as well as creating tasks (as reminders, though without an actual reminder in your notification bar on mobile. You have to check the app for them.) to do before each day on the trip. All of this can be dumped into a single “page”, or organized into a hierarchical structure annotated by tags, relations between the objects and more.
To put it simply, I always find something missing in various itinerary apps. Anytype gives me the freedom to input every and all type of information I need for and during the trip.
Slight warning: If you input the files on PC, you need to them click on them (download them to your local storage) in the mobile as well. Then you can access them without requiring connection to the internet from your mobile later on. If you do this, everything you put in your Anytype itinerary will be accessible offline. Ideally, try accessing everything on mobile when your Wi-Fi and data connections are turned off.
Aegis is so great especially because it allows you to set an automatic backup every time you add a new TOTP. This way, a backup is made immediately after modifying the MFA vault, stored in your phone storage, where it can be grabbed by your synchronization system of choice (e.g., Syncthing), replicating the backup on your other devices, for example. This way, you can rest assured you will always have your MFA vault no matter what.
As a researcher, I am very happy that recently all the conferences and journals we usually publish to champion open access publishing. Due to this, all my work is currently FOSS and all the papers open access. That is a great change to the papers of the past where you have to have an affiliation to a university to get access to a paper and sometimes even that is not enough.