Improvements

As I've saif before the service is quite simple and limited as it stands, I plan to add more customisation options for the tasks as well as better error handling and login, here's a list of them (I might've missed some):

• allow users to specify codecs on operations
• log the duration fo each operation
• (I forgot as I was writing 😅, I'll update the list when I remember... if you have suggestions, create an issue on GH)