Blog transition completed. Since I have all my posts locally and in Markdown, it was much easier than I anticipated. CloudFlare was also of great help, as I could set the old domain name to automatically redirect all posts from one domain to another. There are still some small details that I have to adjust here and there, but it feels so good to use the same website for everything and, at the same time, have the posts delivered to you in the correct language.
Special thanks to people all over the world who checked if the correct website language was being displayed.
Of course, as I mentioned before, if you filter posts by one of the categories, that will display posts with that category in both languages. Also, social media posts will be in both languages because everything I post on my blog is automatically published to connected social media accounts.