I will start this little tutorial by sharing operation system infos. i’am running Macos Big Sure 11.1
workstation@MacBook-Pro-de-workstation grin-wallet % uname -a
Darwin MacBook-Pro-de-workstation.local 20.2.0 Darwin Kernel Version 20.2.0: Wed Dec 2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASE_X86_64 x86_64
Here is the steps to BUILD the latest grin-wallet version. thank you @deev for sharing the steps
git clone https://github.com/mimblewimble/grin-wallet.git
cd grin-wallet
cargo build --release
Once completed you will find the executable file in the target/debug/ folder
First Let’s check our balance by running the “info” command like below 
workstation@MacBook-Pro-de-workstation grin-wallet % grin-wallet info
____ Wallet Summary Info - Account 'default' as of height 1308955 ____
Confirmed Total | 0.731000000
Awaiting Confirmation (< 10) | 0.731000000
Awaiting Finalization | 0.000000000
Locked by previous transaction | 0.000000000
-------------------------------- | -------------
Currently Spendable | 0.000000000
Command 'info' completed successfully
the rewind_hash cmd will help us get the hash we can share publicly if you want to disclose your balance
grin-wallet rewind_hash
Wallet Rewind Hash
-------------------------------------
73ff74121c34e5e4fae53c1e7d1ef807ad36be63788f6730caff2bb19f0e45e2
in order for others to check your balance they will also need the latest grin-wallet version by using cmd in step 1 and run the command below
grin-wallet scan_rewind_hash 73ff74121c34e5e4fae53c1e7d1ef807ad36be63788f6730caff2bb19f0e45e2
View Wallet Outputs - Block Height: 1308955
-----------------------------------------------------------------------------------------------------------------------------------------------
Output Commitment MMR Index Block Height Locked Until Coinbase? # Confirms Value
===============================================================================================================================================
09e2a601ecef1f1d1145c8ba66af77450e7fe7896fa125b080346aff86c1b1e8c6 10056359 1308949 1308949 false 7 0.731000000
-----------------------------------------------------------------------------------------------------------------------------------------------
you can see that the Confirmed Total found by running the info command = Value found by running scan_rewind_hash (0.731)