WordPress.com/Automattic.com charges you US$38,000 to host your blog for 100 years and automatically submit your site to the Internet Archive?
Well, We can do it for free... (the latter part at least, lol)
pip install wordpress-rss-archiverwordpress-rss-archiver <feed_url> --ia-s3 <access_key:secret_key>NOTE: register an Internet Archive account and get your access key and secret key from https://archive.org/account/s3.php