Let's improve the documentation about TeeInput and TeeOuput classes. For example:

1. How can I copy an Input to Output?
2. How can I copy an Output to Output?
3. How can I copy an Output to Input?
4. How can I convert an Output to Text?

At the moment the fat jar does not contain the needed JSON-P implementation. It should contain it since most developers using far jars are not using maven so they probably won't have a clue how to add JSON-P.

Yaml 1.2 is a superset of JSON, which means any JSON should also be parsable into a YAML Document. It would be very useful to have Yaml.fromJsonObject(javax.json.JsonObject) and others.

This is a feature request with low priority right now.

This ticket as a cash bounty on it! Read this before anything: https://amihaiemil.com/2020/02/15/solve-github-issues-and-get-cash.html

Create a class for the AttachmentDocument class that will check that the document is less than 200Mb.
If the document is larger than 200Mb, then skip attaching it.

Let's update Cactoos version.

Document how to enable APT in IDE