diff --git a/GUIDELINES.md b/GUIDELINES.md
index 6f41be09..61f75f14 100644
--- a/GUIDELINES.md
+++ b/GUIDELINES.md
@@ -131,7 +131,7 @@ Use 1-word names for function parameters or variables that have larger scopes:
 
 ```rust
 pub fn commit(repo: &Repository, sig: &Signature) -> Result<Commit, Error> {
-...
+    ...
 }
 ```
 
@@ -207,6 +207,47 @@ Make sure all tests are passing with:
 
     $ cargo test --all-features
 
+### Running end-to-end tests
+
+In order to run end-to-end (e2e) tests you need to have a specific nightly toolchain.
+"Nightly" is necessary to use optimization compiler flags and have contract wasm small enough to be eligible for
+deployment.
+
+Run the following commands to install the necessary toolchain:
+
+```shell
+rustup install nightly-2024-01-01
+rustup component add rust-src
+```
+
+Also, you should have the cargo stylus tool:
+
+```shell
+cargo install cargo-stylus
+```
+
+Since most of the e2e tests using koba for deploying contracts, you need to install solidity compiler v0.8.21, like
+this:
+
+```shell
+curl -LO https://github.com/ethereum/solidity/releases/download/v0.8.21/solc-static-linux
+sudo mv solc-static-linux /usr/bin/solc
+sudo chmod a+x /usr/bin/solc
+```
+
+To run e2e tests, you need to have a local nitro test node set up.
+Run the following command and wait till script exit successfully:
+
+```shell
+./scripts/nitro-testnode.sh -i -d
+```
+
+Then you will be able to run e2e tests:
+
+```shell
+./scripts/e2e-tests.sh
+```
+
 ### Checking the docs
 
 If you make documentation changes, you may want to check whether there are any
@@ -279,12 +320,15 @@ conventions that must be followed.
 - Custom errors should be declared following the [EIP-6093] rationale whenever
   reasonable. Also, consider the following:
 
-  - The domain prefix should be picked in the following order:
-    1. Use `ERC<number>` if the error is a violation of an ERC specification.
-    2. Use the name of the underlying component where it belongs (eg.
-       `Governor`, `ECDSA`, or `Timelock`).
+    - The domain prefix should be picked in the following order:
+        1. Use `ERC<number>` if the error is a violation of an ERC specification.
+        2. Use the name of the underlying component where it belongs (eg.
+           `Governor`, `ECDSA`, or `Timelock`).
 
 [The Rust Style Guide]: https://doc.rust-lang.org/nightly/style-guide/
+
 [EIP-6093]: https://eips.ethereum.org/EIPS/eip-6093
+
 [Semantic versioning]: https://semver.org/spec/v2.0.0.html
+
 [Conventional Commits]: https://www.conventionalcommits.org/en/v1.0.0/
diff --git a/lib/e2e/src/system.rs b/lib/e2e/src/system.rs
index 0bd0d487..aef9ac3e 100644
--- a/lib/e2e/src/system.rs
+++ b/lib/e2e/src/system.rs
@@ -62,9 +62,11 @@ pub fn provider() -> Provider {
 
 /// Send `amount` eth to `address` in the nitro-tesnode.
 pub fn fund_account(address: Address, amount: &str) -> eyre::Result<()> {
-    // ./test-node.bash script send-l2 --to
-    // address_0x01fA6bf4Ee48B6C95900BCcf9BEA172EF5DBd478 --ethamount 10
     let node_script = get_node_path()?.join("test-node.bash");
+    if !node_script.exists() {
+        bail!("Test nitro node wasn't setup properly. Try to setup it first with `./scripts/nitro-testnode.sh -i -d`")
+    };
+
     let output = std::process::Command::new(node_script)
         .arg("script")
         .arg("send-l2")
diff --git a/scripts/e2e-tests.sh b/scripts/e2e-tests.sh
index 3a26eacb..f7b9cdeb 100755
--- a/scripts/e2e-tests.sh
+++ b/scripts/e2e-tests.sh
@@ -5,7 +5,7 @@ MYDIR=$(realpath "$(dirname "$0")")
 cd "$MYDIR"
 cd ..
 
-NIGHTLY_TOOLCHAIN=${NIGHTLY_TOOLCHAIN:-nightly}
+NIGHTLY_TOOLCHAIN=${NIGHTLY_TOOLCHAIN:-nightly-2024-01-01}
 cargo +"$NIGHTLY_TOOLCHAIN" build --release --target wasm32-unknown-unknown -Z build-std=std,panic_abort -Z build-std-features=panic_immediate_abort
 
 export RPC_URL=http://localhost:8547
diff --git a/scripts/nitro-testnode.sh b/scripts/nitro-testnode.sh
index e14a8da4..815323c2 100755
--- a/scripts/nitro-testnode.sh
+++ b/scripts/nitro-testnode.sh
@@ -17,15 +17,15 @@ do
       HAS_DETACH=true
       shift
       ;;
-    -down|--shutdown)
-      docker container stop "$(docker container ls -q --filter name=nitro-testnode)"
+    -q|--quit)
+      docker container stop $(docker container ls -q --filter name=nitro-testnode)
       exit 0
       ;;
     *)
       echo "OPTIONS:"
       echo "-i|--init:         clone repo and init nitro test node"
       echo "-d|--detach:       setup nitro test node in detached mode"
-      echo "-down|--shutdown:  shutdown nitro test node docker containers"
+      echo "-q|--quit:         shutdown nitro test node docker containers"
       exit 0
       ;;
   esac
@@ -46,7 +46,7 @@ then
   # `release` branch.
   git checkout 8cb6b84e31909157d431e7e4af9fb83799443e00 || exit
 
-  ./test-node.bash --no-run --init --no-tokenbridge || exit
+  ./test-node.bash --no-run --init || exit
 fi