merge fixes

Author: squdgy

pages/builders/cex-wallet-developers/cex-support.mdx

@@ -11,7 +11,7 @@ import { Steps } from 'nextra/components'
 This guide explains the basics of Metal L2 development.
 Metal L2 is [EVM equivalent](https://web.archive.org/web/20231127160757/https://medium.com/ethereum-optimism/introducing-evm-equivalence-5c2021deb306), meaning we run a slightly modified version of the same `geth` you run on mainnet.
 Therefore, the differences between Metal L2 development and Ethereum development are minor.
-But a few differences [do exist](/chain/differences).
+But a few differences [do exist](/stack/differences).
 
 ## Metal L2 and Metal L2 Testnet Endpoint URLs
 

pages/builders/cex-wallet-developers/wallet-support.mdx

@@ -45,7 +45,7 @@ All data is retrieved via the [Preimage Oracle API](https://specs.optimism.io/ex
 ## Fault proof virtual machine
 
 The Fault Proof Virtual Machine (FPVM) is one of the modules in the OP Stack's fault proof system.
-OP Stack's modularity decouples the Fault Proof Program (FPP) from the Fault Proof Virtual Machine (FPVM) to enable next-level composability and efficient parallelized upgrades to both components. The FPP (client-side) that runs within the FPVM is the part that expresses the L2 state-transition, and the interface between FPVM and FPP is standardized and documented in the [specs](https://github.com/ethereum-optimism/optimism/blob/546fb2c7a5796b7fe50b0b7edc7666d3bd281d6f/specs/cannon-fault-proof-vm.md).
+OP Stack's modularity decouples the Fault Proof Program (FPP) from the Fault Proof Virtual Machine (FPVM) to enable next-level composability and efficient parallelized upgrades to both components. The FPP (client-side) that runs within the FPVM is the part that expresses the L2 state-transition, and the interface between FPVM and FPP is standardized and documented in the specs.
 
 Through this separation, the VM stays ultra-minimal: Ethereum protocol changes, like EVM op-code additions, do not affect the VM. Instead, when the protocol changes, the FPP can simply be updated to import the new state-transition components from the node software. Similar to playing a new version of a game on the same game console, the L1 proof system can be updated to prove a different program.