Chapter 3 of the book Mastering Bitcoin 2nd Edition is a highly technical chapter for setting up a development environment. It walks you through compiling Bitcoin Core and configuring/running your own node. If you follow the steps and explore the help documentation as described in the chapter, there's more than enough exercises to work on.

The last section of that chapter is Alternative Clients, Libraries and Toolkits. It lists some libraries, clients and toolkits grouped by programming language. We can work on exercises that use any of these to expand on this chapter. With your programming language of choice, select the software in the list that you would like to explore and see if you can do any of the exercises below.

Using a client library, decode Alice's coffee transaction with the following transaction ID:

0627052b6f28912f2703066a912ea577f2ce4da4caa5a5fbd8a57286c345c2f2

Depending on the library, you may have to initially obtain a serialized transaction that you will then have to decode, or you may directly get a human-readable format of the transaction.

Check that you can see the same transaction inputs and outputs as in the book.

In the book, we saw that Alice's transaction was included in block 277316. Using a client library, obtain this block and find Alice's transaction in the list of transactions that the block contains.

The book mentioned getmempoolinfo as one of the more important RPC commands. Using the Bitcoin Core client or an alternative client library with a similar command, execute this command and get the details of the memory pool such as the minimum fee rate for a transaction to be accepted.