You can run -current snapshots. Caveat: the system changes, packages change, things are not always in sync. You might have to upgrade to a newer snapshot if you want to add binary packages after a while. This doesn't affect you if you only use software from base, or only use packages that can be installed around the time you install the system.

Alternatively, you can get binary patches from M:Tier:

https://stable.mtier.org/