Starting a webkit scraper from a ready-made template - what customization actually happens?

i’m considering using a ready-to-use template to jumpstart a webkit scraping project instead of building from scratch. the pitch is that templates save setup time and let non-technical teams get moving fast. but i’m wondering what ‘ready-to-use’ actually means in practice. does it mean the template works as-is, or do you still end up rewriting most of it? how much time do you actually save if the template handles 60% of the work but you need to customize selectors, auth flows, and error handling for your specific webkit target? has anyone actually used a webkit template and tracked how much time you spent customizing versus just building the whole thing manually?