godan verb (-mu), transitive verb
make with great care; craft meticulously; produce with attention to detail
Emphasizes putting effort and detail into making something, often implying a thorough, well-finished result. Used for physical objects, food, software, etc.
この家具は職人が時間をかけて作り込んだものです。
This furniture was crafted with great care by the artisan over time.
彼は
He meticulously built the game's world down to the smallest detail.
godan verb (-mu), transitive verb
build into; incorporate into the construction
Used when something is integrated or embedded into a larger structure during the making process, such as a feature built into a product or a shelf built into a wall.
壁に棚を作り込むことで、部屋がすっきりした。
By building shelves into the wall, the room became tidy.
このシステムにはセキュリティ機能が作り込まれている。
Security features are built into this system.