as you see fit; suitably; properly
Used when leaving a matter to someone's discretion or asking them to handle something appropriately. Often appears in polite requests or instructions.
あとはよしなにお願いします。
Please handle the rest as you see fit.
Please make the arrangements for the details as you think best.
Usually written in kana; the kanji form 良しなに exists but is less common.
Kanji form; learners may encounter it, but kana is preferred.
Derived from the classical adjective よし (good) + なに (adverbial particle). The exact historical development is uncertain, but it has been used since at least the Edo period to mean 'in a good way' or 'as you think best'.