My understanding is that “the code” for BOLT12 has already been written.

The true problem is that @lightninglabs is obstinately blocking all merge requests in favour of other projects (like TARO) that they want to implement and monetize.

The Lightning ecosystem is unhealthy dependent on LND, which is weird because we have one other working Lighting implementation, namely Core Lighting.

The whole ecosystem is held hostage by LND and their >80% marketshare. If they had like 25% and there were more players, then sure, we would already have BOLT12 today.