Using alt text to described permaculture things

I was posting about my rocket oven on Bluesky today and saw alt text for the video. This got me thinking about how does one described a rocket oven to someone who can not see. Is there a common way this is done? Where would I start?

This also got me thinking about other things like:

Hugelkultur

Natural building

Rocket based things (i.e. stoves, ovens, mass heaters)

If would be great if there was a common way to described this stuff.

What are your thoughts and ideas.

If someone cannot see why not have them feel what a rocket oven is?

I think alt text is used to help google find things, so alt text should be the sort of words that people might use to look for a purchase or information.
I might ask google:

"What is a rocket stove?"
or
"efficient eco heat" for example, and it would be good if that sort of search led to a rocket mass heater page or picture.

Everyone uses different search terms though, so getting the right terms to catch people's attention is something that companies spend a lot of time and money doing. You can find out what popular searches are, but they'll be something like football teams or celebrities however you can find out if "flower bulbs" or "spring flowers" is a better term. I don't know if it matters whether lots of terms are used to try and cover all the bases. I suspect it dilutes the message to a certain extent.

I've never understood hashtags though. Are they only for catching social media attention?

Nancy Reading wrote:I think alt text is used to help google find things, so alt text should be the sort of words that people might use to look for a purchase or information.

As far as I know, alt-text was created for anyone who cannot use the image format.  Initially, this would be b/Blind people & those with slow Internet connections, or in too much of a hurry to load & study the image, and in my case, Neurodivergent people who struggle with visual information and get on better with plain text.  

These days, it's also when people turn off images to save on the cost of data on their mobile devices, and also, Web search engine design does as you say use them for finding relevant content too.

My Blind friend says that alt-text should have a meaningful 120 character summary of the key information from the post, followed by a copy of the full post text.  That's because for some Blind people like my friend, they can ONLY access the alt-text, not the main post, with their screen reading technology; others can only access those first 120 characters.

Nancy Reading wrote:I've never understood hashtags though. Are they only for catching social media attention?

As far as I know, the creators of Twitter brought hashtags over from Internet 'chat rooms' to go on the key words of a post. This is to help people quickly search for relevant information on that platform, and other platforms adopted them.  Hashtags became particularly popular on Twitter, because the format of the site makes it quick to download over slow Internet connections e.g. mobile phone data in regions not served well by wired Internet, including the Global South.