How can i upload posts of markdown form in mobile environments?

I am going to writing everything in web, because of preventing to forget important things to do, and that i want to remember.
And I also want to attach affiliate tag and advertisement banner to earn a few revenues.
With Notion, I can write and save some articles in mobile phone, But In Hugo, I can not think about ways how i can upload text in smartphone.
Are there mobile apps that i can commit and push to my github repository which connects my blog? Or Can i write directly blog posts in blog page?

Yes there are. Here is one for iOS: