solana-program-library VS metaplex-program-library

I noted that https://github.com/solana-labs/solana-program-library/tree/master/token/program-2022/src/extension/confidential_transfer appears to be built-in to Solana. Can this be used for NFTs, minted int he following way:

https://github.com/solana-developers/one-milion-nfts

Utilizing state compression using merkle trees (https://github.com/solana-labs/solana-program-library/tree/m...)

Solana Account Compression Repo

Github proposal: https://github.com/solana-labs/solana-program-library/pull/3725

I was looking at https://github.com/solana-labs/solana-program-library/blob/master/examples/c/src/cross-program-invocation/cross-program-invocation.c for invoking the system program but couldn't get very far.

It's all non-custodial and you can withdraw at any time without any delays or lockups (it's liquid staking), there's very little risk for you since the protocol was created by Solana Labs, audited by three companies, and made open-source.

BlazeStake just launched recently, but there is a launch giveaway at https://twitter.com/solblaze_org/status/1523802691171807232 for people who stake at least 0.25 SOL with the pool. The pool program was built by Solana Labs and audited by three separate companies, plus the code is all open-source, so you can be sure your funds are safe when using the stake pool!

There are a few people that have started staking with us already. If you don't fully trust us, our code is completely open-source, the programs were created under the guidance of Solana Labs, and the programs have been audited by three separate auditing firms.

As an example, see Solana. I'm not a fan, but we can't deny that while being younger than Algorand they had a huge ecosystem growth and we can learn from their success. Part of this is due to Solana Labs maintaining a program library, https://github.com/solana-labs/solana-program-library, which a lot of their DeFi apps build upon.

You can also check out the program but I'm actively working on porting metaplex auction house as the backbone. A "BOYNC" version of the MPL Auction House will soon follow.

All NFT modifications must happen through the Bubblegum program.

My auction contract required doing some Metaplex metadata checks, so testing required creating an NFT just like they do in mainnet. However, your localnet doesn't come with the program deployed so you have to set that up yourself. Clone https://github.com/metaplex-foundation/metaplex-program-library and run anchor build inside the token-metadata directory. This will output a target/deploy/mpl_token_metadata.so binary that you can import into your project.

[1]: https://github.com/metaplex-foundation/metaplex-program-libr...