I see the author recently (1-month ago) re-implemented the Lilly language in C (It seems to have originally been written in Rust. In effect this is a completely new project based on learning from an older very similar project. Making a such a fundamental switch in the implementation technology is likely to have a negative impact on on bug count and stability that the author refers to. (Netscape went out business because they tried to re-write their browser in Java.) The solution here is for the author to realize that this is a new project and treat it as such and not worry about the state of bug count/stability too much. He probably just needs to soldier on to complete the project to their satisfaction.