i use railway to deploy the main aether server, but i want to log full files somewhere

is it insane to set up a digital ocean droplet as a server to just receive information and log the files there? is there a simpler way? i literally just need to write markdown files

I'd avoid running another server just for logging. I could recommend "cloud logging" services, several options if you look. Simply add a client library for logging to a cloud provider. Very easy integrations. You can log the full markdown files. 

Google Cloud is a good cloud logging service provider. You can find their client and see how you'd integrate it here: https://cloud.google.com/logging/docs/reference/libraries

Bonus of this method is the google cloud logging dashboard, for searching logs and viewing the details, is really good. 

It's also very easy to get A LOT of free credits from google if you apply for their program here: https://cloud.google.com/startup 

Check the pricing for logs carefully and mind what you log, because it can really add up doing it this way.

And for storing the file, look at google cloud storage, I think you want to be putting the markdown into object storage, and log the link/path to the files in the logging service.

And for storing the file, look at google cloud storage, I think you want to be putting the markdown into object storage, and log the link/path to the files in the logging service.

https://cloud.google.com/storage/docs/uploading-objects