How do I build a bilingual Finnish + Swedish (Suomi + Svenska) Magento storefront?

Finland has two official languages: Finnish (Suomi, ~88% of population) and Swedish (Svenska, ~5%, concentrated on the west coast, Vaasa, Turku, Pietarsaari, and the autonomous Åland Islands where Swedish is the only official language). It’s mandatory for public-sector procurement and a strong signal of professionalism for any pan-Finnish store.

Magento 2 architecture:

1. Two store views under one website: fi (Suomi) + sv (Svenska). URL structure: yourstore.fi/ for Suomi (default) + yourstore.fi/sv/ for Svenska (or vice versa).
2. Per-store-view translations, product names, descriptions, attribute labels, CMS pages, email templates, ALV labels (“ALV 25,5 %” vs “Moms 25,5 %”), checkout copy.
3. Hreflang, auto-emitted by Panth_Hreflang module: fi-FI, sv-FI, plus sv-AX for Åland if you target it separately.
4. Bank labels at checkout, localised to each language (“Nordea” is universal, but “OP-Pankki” vs “Andelsbanken” for OP-Bank in Swedish).
5. Currency stays EUR for both; thousand separator is space (“1 234,56 €” in Finnish, “1 234,56 €” in Swedish).

Translation: we work with native Suomi + Svenska translators for the storefront strings, never machine-translation.