I’ve switched over to using the WordPress Multi-lingual (WPML) plugin for translating my posts. Because of this change, the default front page of my site will now show only posts in English, with Finnish posts at https://danielkoskinen.com/fi/.
The reason I finally went the plugin route was to better allow for translating non-blog content such as my About page, Portfolio etc. The WPML plugin went commercial recently to allow for better customer support and development resources. They also split all the extra CMS features into separate, smaller plugins, which is smart for those only needing the basic blog features. Check it out at wpml.org (affiliate link).
Check your feeds
You might want to update your feeds, if you’re reading this via a feed reader. Occasionally I might write the same post in both languages, so to avoid duplicate content you can subscribe to the appropriate feed.