The Standing Invitation
Stop organising. Let the same thing happen on the same day.
A lot of adult friendships fade for the boring reason that nobody wants to be the one proposing plans every time, not because anything went wrong. Everyone means it when they say we should do this more often, and then nobody sends the message.
Organising costs someone effort every single time, and that cost is what stops it happening. A fixed recurring slot pays that cost once. Nobody has to propose, negotiate, or feel responsible. It either happens or it does not, and either way it is on again next time.
Pick a fixed slot, not a frequency
First Tuesday of the month. Not monthly, which requires deciding when. The specific date removes the negotiation.
Keep it low effort and repeatable
Same place, same time. Something anyone can attend without preparation or expense.
Say it runs whether people come or not
This is the part that makes it survive. No guilt about missing one, no pressure to confirm.
Show up when it is only you
It will be, sometimes, early on. Cancelling the first quiet one usually ends it.
Go deeper
What the paid version adds to this one.
How to start one that survives the first three quiet months
Group sizes and formats, and which ones die fastest
How to hand it over so it does not depend on you forever
Case studies of ones that lasted years and ones that folded