Been running my own podcast on Castopod for the last year and it has been quite the learning experience. First, realized that part of running the show was making it available through mainstream platforms, but started with basic RSS feed and fediverse integration (for Mastodon users and such).
op3 analytics easily allows anyone to have basic understanding of their audience. Added basic podcasting 2.0 support, which also allowed IPFS support, but still haven't dug too deep into this (beyond knowing it is working). Added transcriptions with local-only Whisper and chapter support with ChapterTool, because people expect this in podcasting 2.0 clients.
Setup a chat on matrix.org and got a friend to help with a Draupnir moderation bot (which we were also testing for a community Open Source project chat). Decided to migrate my domain to a new registrar supporting Let's Encrypt certificates natively (I was maintaining them via a cron command unofficially, otherwise not supported by the domain registrar). Transition was smooth and no problem.
Created a dedicated podcast email account for people to contact the show and migrated my email smtp/imap to a dedicated service I could trust (and use as a relay once I eventually begin selfhosting the email server as well). Added a Flarum forum, since somewhere is needed for longer form conversations. Plugged in Uptime Kuma for monitoring and added all of my services to FreshRSS in order to keep tabs on all of my work. These days I'm wishing I'd simply used a wiki, or even a collaborative chat platform like HedgeDoc. Found LimeSurvey a bit too much for my needs, but Nextcloud Forms has worked just fine for people to send in their anonymous feedback.
Things are fairly quiet in terms of the show, but working out just fine. No doubt I'm forgetting tons of steps in regards to all of what I've learned, but it has been a fruitful year. Been using flat VPN network approach to connect to any servers and homelab applications being tested. Looking forward to more progress this next year. You can checkout the show here if you are curious.