productivity - Academic home page with low maintenance burden

It's been mentioned before on this site how important it is to have a webpage.

Most academics don't have a lot of experience with web development, and do not realistically have time to learn it and keep the knowledge up to date.

What are some good ways/tools to create and maintain a professional website when the priority is minimizing long term maintenance burden?

My experience is that it's not uncommon that people will put in the effort to build a very nice website once, but they simply won't be able to maintain it long term. Either it's too much effort to add new content (too busy to do it), or they change institutions and it's too much effort to migrate the site (because e.g. the new institution's hosting doesn't support some of the necessary tools, such as PHP, etc.) Even if I put in the effort to learn a bit about web development today, I won't be using this knowledge contiually, so I'll forget how to do it. At that point it might become too much of a burden to keep a website up to date, so eventually I'll neglect it.

This question is about how to avoid this situation, and what tools or hosting methods to use to minimize maintenance burden so a home page can realistically be kept up to date.

The simplest solution seems to be to only use basic (static) hand-written HTML and maybe a simple CSS stylesheet. Many (most) academics are doing this. The result will probably not be very beautiful and will look like webpages 15 years ago, but it can serve the purpose. Are there any better ways? (Typing all that

and and

 and 
 is in fact still rather tedious and error prone compared e.g. to writing MarkDown here.)