Did you know most coyotes are illiterate?
I’m used to LanguageTool, and at a glance it seems like Harper covers way fewer rules than LanguageTool does. Not sure if this is actually noticeable in practice, but I run my own LanguageTool server and am not too picky about the performance, so I’m not in a rush to move until someone figures out a good way to compare them. LanguageTool’s rules are all open source at least, so it’s only a matter of time before Harper gets anything it might be missing.
I’ve been using this a lot lately, and it’s been great after a bit of a learning curve. It even incorporates some of the functionality from the addons and userscripts that I needed for YouTube, like getting rid of clickbait titles/thumbnails and blocking specific channels. Since you never really have a tracking profile when using YouTube this way, it’s very obvious when YouTube is trying to shoe-horn in political channels and clickbait, and you can just continually keep blocking those channels in the recommended section until you get all of them. I’m still missing a way to boost the volume on certain videos that are too quiet for me, though. I use LibRedirect to auto-open YouTube links in FreeTube. FreeTube has occasionally broken because of YouTube API updates, which requires them to figure out the problem and push a new FreeTube release (which could take a day or more), but other than that I’m fairly happy with it.
It’s important to use services with a workflow that works for you; not every popular service is going to be a good fit for everyone. Find your balance between exhaustive categorization and meaningless pile of data, and make sure you’re getting more out than you’re putting in. If you do decide that an extensive amount of effort is worth it, make sure that the service in question is able to export your data in a data-rich format so that you won’t have to do it all again if you decide to move to a different tool.
Better yet, why put yourself at the mercy of something that can enshittify in the first place? I’ve never understood why people get into selfhosting and then go right back to giving power over their network to a 3rd party again.