It's pretty pretty hard to have this achieved with how the platform is today. Content is one (communities and posts) but lack of WTF is going on even for tech savvy people is another thing. Try asking a non user to go to the main entrance place for Lemmy (like googling it). Then ask them to find something of interest. Then ask them to create an account so they can comment. Those pretty fundamental things are non-existent.
Pretending that they exist or are easy to use is like saying Arch Linux is easy or even driving is easy. It is not. You need tons of preparation. The above take 1 minute in all common social media. Unless those three things are clear for people 20 to 40 yo, Lemmy will never gain traction.
Can't it be reverse engineered? It's java bytecode.