Create and build your own contracts
The contracts workflow happens in the contracts/ folder. Here you can see that the greeting contract is present already.
Every new contract should be in its own folder, and the folder should be named the same name as the name of the contract in its cargo.toml file. You can check how the tweaked_greeting contract is changed from the greeting contract and you can also start from this to build your own contract.
To build the contracts you can simply invoke the make command which will recursively build all contracts by propagating the make command to subfolders. Each contract needs to have its own Makefile for this to work. The Makefile from the greeting contract is a generic one and can be copied and paste to use with any of your new contract.
If you are not familiar or comfortable with Makefiles you can simply go in the directory of the contract you want to compile and run
# This will create the target wasm blob under target/wasm32-unknown-unknown/release/contract_name.wasm
cargo build --target wasm32-unknown-unknown --release
If it's your first time manipulating soroban contracts you might need to add the
wasm32-unknown-unknowntarget to rust. For this runrustup target add wasm32-unknown-unknown.
Follow instructions you find online if not working ( search for "add target wasm32-unknown-unknown to rust" ).