Drip the syllabus level by level.
A language course is a sequence, not a dump. Alva Courses drips whole sections or single lessons a set number of days after a student enrols — A1 now, A2 in two weeks, B1 a month later. You can also schedule a lesson to publish on a fixed date or keep it as Draft until you are ready, so a single self-paced course paces every learner through the same structured path.
Combine drip with "Require completion before next lesson" and students cannot skip ahead: they finish the current unit, the next opens on schedule, and momentum builds week after week.