switch to correct solana RPCs

README.md

@@ -43,14 +43,16 @@ Don't forget to run `cargo clippy` and `cargo fmt` before submitting a PR.
 ## Known issues
 
 1. If you create a new node as a root and it will create the private key and save it
-   to the disk, it will remain sealed and when the node will try to connect to the
-   rest of the network, it will still use the private key from the disk for minting.
+   to the disk, it will remain sealed and when the node will restart and try to join
+   the rest of the network, it will still use the private key from the disk for
+   minting and sharing.
 2. If you run the hacker challenge on the Out Of Life processors you may have a
    privilege to run certain attacks, for instance check (this
    article)[https://x.com/PratyushRT/status/1828183761055330373].
 3. The challenge is compiled using the HW mode, not HYPER so it may not work on
-   the cloud providers (needs more testing).
+   some cloud providers, like Azure Intel SGX VMs (needs more testing).
 4. The performance and stability of the challenge is not at its theoretical peak as
    the challenge was done mostly as a poc and was not meant to be infinitely scalable
    or very performant.
-
+5. The challenge is not mutable once deployed, which means that it will remain
+   secure for as long as the community will not find a new vulnerability in SGX.

src/solana.rs

@@ -15,7 +15,10 @@ use spl_token::{
 };
 use tokio::time::{sleep, Duration};
 
+#[cfg(feature = "test")]
 const RPC_URL: &str = "https://api.devnet.solana.com";
+#[cfg(not(feature = "test"))]
+const RPC_URL: &str = "https://api.mainnet-beta.solana.com";
 
 pub struct SolClient {
     client: RpcClient,