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README: Improve formatting

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@ -51,21 +51,21 @@ S3 compat layer provided by Ceph as one option
[Ceph Stretch](https://docs.ceph.com/en/latest/rados/operations/stretch-mode/) [Ceph Stretch](https://docs.ceph.com/en/latest/rados/operations/stretch-mode/)
Needs 3 zones (arbiter versus data zones) with a maximum of 700ms latency Needs 3 zones (arbiter versus data zones) with a maximum of 700ms latency
Ceph Stretch is a solution to specifically cater for higher latencies Ceph Stretch is a solution to specifically cater for higher latencies
because its use case is to span over several geographically seperated data centers because its use case is to span over several geographically seperated data centers
Possibly [rook](https://rook.io/docs/rook/v1.9/ceph-storage.html) as provider Possibly [rook](https://rook.io/docs/rook/v1.9/ceph-storage.html) as provider
[OpenEBS](https://openebs.io/) [OpenEBS](https://openebs.io/)
[Longhorn](https://longhorn.io/) [Longhorn](https://longhorn.io/)
### Problems ### Problems
etcd latency etcd latency
Network bandwith and latencies not predictable for the individual participant's connections Network bandwith and latencies not predictable for the individual participant's connections
Low bandwith, not symmetric with regard to bandwith Low bandwith, not symmetric with regard to bandwith
### What we did _not_ discuss ### What we did _not_ discuss
What kind of SBC to use or support What kind of SBC to use or support
The more RAM the better. Many SBCs are low on RAM, typically only up to 4GB The more RAM the better. Many SBCs are low on RAM, typically only up to 4GB
and while SBCs with much more RAM exist they might not be as well supported by Linux and while SBCs with much more RAM exist they might not be as well supported by Linux
or not as well available like the more common ones or not as well available like the more common ones
An interesting candidate seems to the [Raxda Rock 3-5](https://wiki.radxa.com/Rock3) with up to 32GB of RAM An interesting candidate seems to the [Raxda Rock 3-5](https://wiki.radxa.com/Rock3) with up to 32GB of RAM
While there is no immediate or inherent reason to restrict that, While there is no immediate or inherent reason to restrict that,
@ -76,15 +76,15 @@ and / or run their own system image for their SBC
## What we have ## What we have
### Hardware ### Hardware
Pine64 Pine64
Pine ROCKPro64 Pine ROCKPro64
Raspberry Pi Raspberry Pi
### Software ### Software
Talos on Pine64 Talos on Pine64
## Next steps ## Next steps
Please add your name, mail address, notes and thoughts to this README Please add your name, mail address, notes and thoughts to this README
Decide on and set up communication infrastructure Decide on and set up communication infrastructure
Decide on cluster endpoint / entry point solution Decide on cluster endpoint / entry point solution
Explore Talos more in-depth Explore Talos more in-depth