The following guides explain how to set up the Gridcoin Research wallet client on the platform of your choice.
If you want to run Gridcoin as a non-cruncher, you do not need to install the BOINC client. In this case, you will only earn POS interest and not receive research rewards due to a lack of BOINC research. The amount and frequency of interest depends on the quantity of coins you are holding in your wallet/client.
Note that the wallet refers to being a non-cruncher as an "investor". This is not referring to investing. It just means having Gridcoin in your wallet and not trying to be rewarded for doing work on BOINC