How do you make a post on Twitter/X accessible?

This feature reminds you to add alt text to images before you post. If you try posting without alt text, a pop up appears allowing you to add it.
Once activated, you will receive reminders to add alt text to your photos.
This is a big deal for those with sight loss as alt text can be used by a screen reader to describe the image to a user.
When Twitter rebranded to X, the way links were displayed changed. Instead of getting the text of the headline such as 5 accessibility tips you need to know, you now just get the web address such as hello@vially.io.
If you just post a link, the user has no idea what the link you shared is about. Make sure to describe what someone can expect if they click a link. This makes life easier for those with disabilities, but your able-bodied customers will benefit too.