LocktreeDev is a sole proprietorship founded by Edwin Asselman (Slotboom) and focuses on developing websites that improve existing products and processes. It started in 2021 as a concept under the name Locktree JavaScript, where the first product was developed: a solution to customize standard JavaScript alerts. In September 2024, LocktreeDev officially launched, along with the development of our real estate listing website. With a solid background in software development, including a completed