One of the authors worked on Apache Flink but is too modest to include that interesting detail! So I'm adding it here. Hopefully he won't mind.
Restate is in many ways a mirror image to Flink. Both are event-streaming architectures, but otherwise make a lot of contrary design choices.
(This is not really helpful to understand what Restate does for you, but it is an interesting tid bit about the design.)
Flink | Restate
-------------------------------
|
analytics | transactions
|
coarse-grained | fine-grained
snapshots | quorum replication
|
throughput- | latency-sensitive
optimized |
|
app and Flink- | disaggregated code
share process | and framework
|
Java | Rust