Lion - dapplion

fork choice changes are not a consensus change, because you can still interop and only matters in your local view. Fork-choice changes SHOULD be coordinated tho, otherwise weird things can...

Obsolete, PeerDAS is part of Fulu

@dospore sorry for leaving this PR open for a while, would you mind fixing conflicts?

``` error: package `migrations_macros v2.2.0` cannot be built because it requires rustc 1.78.0 or newer, while the currently active rustc version is 1.77.0 Either upgrade to rustc 1.78.0 or newer,...

@T-ess do you still have capacity to drive this feature? Otherwise we can close and do another ticket for future protocol fellowship participants

Let's do `{fork_name}_enabled` we already committed to it

Do you have metrics tracking the memory usage of this instance? Would be helpful to see if it's a linear or spiky increase and at what rate. Also please send...

I get a compilation error from xdelta3 trying to compile this branch: EDIT: Fixed (cropped previous text because it's long)

## TODOs EDIT: _completed_

TODO ~ Some metrics that we should add: - https://github.com/sigp/lighthouse/pull/6041 - byte size of `diff_buffer_cache_size` - elements in `diff_buffer_cache_size` - counter for replayed blocks - counter for diff_buffer_cache hits /...