Update installation info for bb and noir

AztecProtocol · Aug 21, 2024 · fcc7f82 · fcc7f82
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diff --git a/barretenberg/cpp/src/barretenberg/bb/readme.md b/barretenberg/cpp/src/barretenberg/bb/readme.md
@@ -3,7 +3,7 @@
 ### Why is this needed?
 
 Barretenberg is a library that allows one to create and verify proofs. One way to specify the circuit that one will use to create and verify
-proofs over is to use the Barretenberg standard library. Another way, which pertains to this module is to supply the circuit description using 
+proofs over is to use the Barretenberg standard library. Another way, which pertains to this module is to supply the circuit description using
 an IR called [ACIR](https://github.com/noir-lang/acvm).
 
 This binary will take as input ACIR and witness values described in the IR to create proofs.
@@ -35,7 +35,7 @@ This binary will take as input ACIR and witness values described in the IR to cr
     ```
 
     Check the version compatibility section below for how to identify matching versions.
-    
+
 4. Check if the installation was successful:
 
     ```bash
@@ -44,6 +44,10 @@ This binary will take as input ACIR and witness values described in the IR to cr
 
 If installation was successful, the command would print the version of `bb` installed.
 
+### Usage prerequisites
+
+Certain `bb` commands will expect the tool `jq` to already be installed. If `jq -V` doesn't return a version number, install it from [here](https://jqlang.github.io/jq/download/).
+
 ### Version compatibility with Noir
 
 TODO: https://github.com/AztecProtocol/aztec-packages/issues/7511

diff --git a/noir/noir-repo/docs/docs/getting_started/installation/index.md b/noir/noir-repo/docs/docs/getting_started/installation/index.md
@@ -39,6 +39,10 @@ noirup
 
 Done. That's it. You should have the latest version working. You can check with `nargo --version`.
 
+:::note
+Be sure to check the prerequisites for the Noir backend you are using. For instance, those for the default backend `bb` can be found [here](https://github.com/AztecProtocol/aztec-packages/blob/master/barretenberg/cpp/src/barretenberg/bb/readme.md#usage-prerequisites).
+:::
+
 You can also install nightlies, specific versions
 or branches. Check out the [noirup repository](https://github.com/noir-lang/noirup) for more
 information.