How to reserve (and run?) an Earth Node?

Hello World!
being in this WMT-Subreddit, i really recognize how privileged i am, just writing the first 2 words.
Hello World! ... billions of people are not able to read those words online... :-(

• What i´d like to know and understand is:
  2.500 WMT (for example) are possible to stake in a public stake pool.
  And this will be quite similar to staking ADA in a Cardano Pool, right?!
  When will it be possible to stake, in late august after the TGE - or in 2022 when the mainnet starts?

• about the Earth Node:
  with 100.000 WMT in the wallet it´s possible to "reserve" an earth node.
  ok, understood.
  But - what does that mean exactly?!
  Will there be a DATE X with the TIME X when people with 100.000 WMT in their wallet can "reserve"?
  What does "reserve" mean?
  Will there be a "RESERVE"-button in the WMT-Vault that has to be pressed at midnight on DAY X to be under the first 100 earth-nodes?! ;-)

And after they have successfully "reserved", what does an earth-node-operator has to do then?
What´s "THE JOB"? Not moving the 100.000 WMT out of the wallet?
What else? :-)

And...
will those reservations happen every 6 month again... and again...?
or is the "Earth Node Operator Reservation" a "once in a lifetime-Event"?!?

I´m new to this, so sorry for perhaps a stupid question...
but i love the goals and the mission WMT has and would like to understand how this works.

Thanx everyone 4 reading, enjoy your sunday :-)