How do they sign up or navigate through lemmy or interact do they use aditional software or hardware for these ? And i am not just talking about lemmy everytime i see some app or websit or litterally any piece of software having an accesibility feature i think to myself that if i was blind how does this feature help me like at all ? Is it for another kind of disabled people like people who are a little blind wouldn’t bigger fonts be better for them ? Or if someone doesn’t have any limb how does this help em . I am geniunly clueless on this subject do educate me.
It depends a lot on specific software, but generally, they hook into the standard functions on the computer and provide alternative ways to interact with it. For example, for someone who is visually impaired, the software will be able to take text (not usually images, thus the need for transcription) and enlarge it, or read it aloud. For someone who has mobility limitations, there are options for different control methods, that usually replace traditional control methods. That said, these options are limitted to what is standard interaction, so if the program or website does something weird, unique, or outright hostile, will will usually break. For example, text needs to be stored as text, links programmed as links, and games need to not ban you for using a non-standard input device.