This is my approach and I fully recommend it. My personal website is my canonical home address on the web. It has outlived a few platforms and many rounds of enshittification.

A few caveats:

- You will have different communities on each social network. Your personal website might be home to you, but to your users, it's not. You're just another creator on their platform of choice.

- Each community has its own vibe, and commands slightly different messaging. This is partly due to the format each platform allows. Each post will create parallel but different conversations.

- Dumping links is frowned upon. You should be a genuine participant in each community, even if you just repost the same stuff. Automation does not help much there.

- RSS and newsletters are the only audiences that you control, and they're worth growing. Everywhere else, people who explicitly want to follow you might never see your updates.

- You should own the domain you post to. This is your address on the internet, and it should stay yours

- People do check your personal website. I was surprised to hear friends and acquaintances refer to things I post on my website.

I've found that managing the conversations across venues is way harder than publishing to them, and POSSE doesn't address this except for one line about backfeeds/"reverse syndication", which most mainstream services either don't support or actively sabotage. It easily takes more effort to engage across services than to post across them.