It's much easier and cheaper than you think to start your own server on Mastodon and the Fediverse.
Non-technical people can use a "Managed Hosting" service, where the hosting company does all the technical stuff for you, including setting up, upgrades and fixing things.
I run a website all about creating your own servers through managed hosting at:
➡️ https://growyourown.services
This section is all about making your own Fediverse servers:
➡️ https://growyourown.services/grow-your-own-social-network/
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.