Don't send your real bitcoin here, you may lose your Bitcoin. If you are willing to use TestNet's Bitcoin for testing, I will thank you very much. You can reply with any questions.
I don't want to be disappointed, but you did not explicitly mention that on the page, on the contrary, it is mentioned below.
We don't recommend mixing the same amount of bitcoins over and over again in a short period of time!
You can copy the working mechanism of chipmixer, but do not copy the same code. There are millions of templates, so there is no need to link the service to chipmixer, which a hacker can exploit in the future if there are high traffic to your domain.
I did not understand the purpose of the service, is it a faucet? If so why do I need to deposit first, if not a faucet why do I need to mix tBitcoins?