diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index a99c41cfde55..2acce0132743 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -24,12 +24,11 @@ jobs:
           go-version: '1.20'
       - name: Display go version
         run: go version
-      - name: Install relayer and simapp
+      - name: Test finschia to finschia
         run: |
           cd e2e
-          sudo make install-relayer
-          make install-simapp
-      - name: Test e2e
+          make test-fnsa-fnsa
+      - name: Test finschia to cosmos
         run: |
-          cd e2e   
-          make test-e2e
+          cd e2e
+          make test-fnsa-csms
diff --git a/e2e/.gitignore b/e2e/.gitignore
new file mode 100644
index 000000000000..726c17aea066
--- /dev/null
+++ b/e2e/.gitignore
@@ -0,0 +1,2 @@
+bin
+data
\ No newline at end of file
diff --git a/e2e/Makefile b/e2e/Makefile
index e9b46be75e60..48a9d7f44f70 100644
--- a/e2e/Makefile
+++ b/e2e/Makefile
@@ -1,19 +1,41 @@
 RLY_VERSION := 2.3.1
+CSMS_VERSION := 4.3.1
 ARCH := $(shell dpkg --print-architecture)
+PATH := $(shell pwd)/bin:$(PATH)
 
-install-relayer:
-	@curl -L https://github.com/cosmos/relayer/releases/download/v$(RLY_VERSION)/Cosmos.Relayer_$(RLY_VERSION)_linux_$(ARCH).tar.gz --output relayer.tar.gz
-	@tar -xf relayer.tar.gz  --transform 's!^[^/]*!relayer_archive!'
-	@mv relayer_archive/rly /usr/bin
+bin/simd: 
+	@mkdir -p bin && \
+	cd ../ && \
+	make build && \
+	mv build/simd e2e/bin
+	@fnsasimd version --long
+
+bin/csmssimd:
+	@mkdir -p bin/cosmos && \
+	cd bin/cosmos && \
+	curl -L https://github.com/cosmos/ibc-go/releases/download/v$(CSMS_VERSION)/ibc-go_simd_v$(CSMS_VERSION)_linux_$(ARCH).tar.gz --output cosmos_simd.tar.gz && \
+	tar -xf cosmos_simd.tar.gz && \
+	mv simd ../csmssimd
+	@csmssimd version --long --log_level=info
+
+bin/rly:
+	@mkdir -p bin/relayer && \
+	cd bin/relayer && \
+	curl -L https://github.com/cosmos/relayer/releases/download/v$(RLY_VERSION)/Cosmos.Relayer_$(RLY_VERSION)_linux_$(ARCH).tar.gz --output relayer.tar.gz && \
+	tar -xf relayer.tar.gz  --transform 's!^[^/]*!relayer_archive!' && \
+	mv relayer_archive/rly ../
 	@rly version
-	@rm -rf relayer.tar.gz relayer_archive
 
-install-simapp:
-	@cd ../ && \
-	make install
-	@simd version --long
+test-fnsa-fnsa: bin/rly bin/simd
+	@./e2e fnsa-fnsa fnsa-0 simd 438 fnsa-1 simd 438 "skip" 
+
+test-fnsa-csms: bin/rly bin/simd bin/csmssimd
+	@./e2e fnsa-csms fnsa-0 simd 438 csms-1 csmssimd 118 "skip" 
+
+clean-all:
+	@rm -rf bin data
 
-test-e2e:
-	@./e2e
+clean-data:
+	@rm -rf data
 
-.PHONY: install-relayer install-simapp test-e2e
+.PHONY: test-fnsa-fnsa test-fnsa-csms clean-all clean-data
diff --git a/e2e/configs/chains/csms-1.json b/e2e/configs/chains/csms-1.json
new file mode 100644
index 000000000000..9f60774765ab
--- /dev/null
+++ b/e2e/configs/chains/csms-1.json
@@ -0,0 +1,18 @@
+{
+  "type": "cosmos",
+  "value": {
+    "key": "testkey",
+    "chain-id": "csms-1",
+    "rpc-addr": "http://localhost:26557",
+    "grpc-addr": "",
+    "account-prefix": "cosmos",
+    "keyring-backend": "test",
+    "gas-adjustment": 1.5,
+    "gas-prices": "0.025rice",
+    "debug": true,
+    "timeout": "10s",
+    "output-format": "json",
+    "sign-mode": "direct"
+  }
+}
+
diff --git a/e2e/configs/paths/fnsa-csms.json b/e2e/configs/paths/fnsa-csms.json
new file mode 100644
index 000000000000..657613907b32
--- /dev/null
+++ b/e2e/configs/paths/fnsa-csms.json
@@ -0,0 +1,12 @@
+{
+  "src": {
+    "chain-id": "fnsa-0"
+  },
+  "dst": {
+    "chain-id": "csms-1"
+  },
+  "src-channel-filter": {
+    "rule": null,
+    "channel-list": []
+  }
+}
diff --git a/e2e/e2e b/e2e/e2e
index 325cbb415346..7a0d30414014 100755
--- a/e2e/e2e
+++ b/e2e/e2e
@@ -1,10 +1,18 @@
 #!/bin/bash -e
 RELAYER_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
-RELAYER_CONF="$HOME/.relayer"
-FNSA_CONF="$(pwd)/data"
+HOME_DIR="$(pwd)/data"
+RLY_HOME="$HOME_DIR/relayer"
+
+CHAIN_PATH=$1
+CHAIN0_ID=$2
+CHAIN0_BIN=$3
+CHAIN0_COINID=$4
+CHAIN1_ID=$5
+CHAIN1_BIN=$6
+CHAIN1_COINID=$7
 
 # Ensure user understands what will be deleted
-if ([[ -d $RELAYER_CONF ]] || [[ -d $FNSA_CONF ]]) && [[ ! "$1" == "skip" ]]; then
+if ([[ -d $HOME_DIR ]]) && [[ ! "$8" == "skip" ]]; then
   read -p "$0 will delete \$HOME/.relayer and \$(pwd)/data folder. Do you wish to continue? (y/n): " -n 1 -r
   echo
   if [[ ! $REPLY =~ ^[Yy]$ ]]; then
@@ -12,21 +20,18 @@ if ([[ -d $RELAYER_CONF ]] || [[ -d $FNSA_CONF ]]) && [[ ! "$1" == "skip" ]]; th
   fi
 fi
 
-cd $RELAYER_DIR
-rm -rf $RELAYER_CONF &> /dev/null
-pwd
 # spin up two ibc enabled chains and add relevant config info for relaying
-bash scripts/fnsa-chainz "skip"
+bash scripts/chainz $CHAIN0_ID $CHAIN0_BIN $CHAIN0_COINID $CHAIN1_ID $CHAIN1_BIN $CHAIN1_COINID "$8"
 
 echo "waiting for blocks..."
 sleep 3
 
 # creates clients, connections and channels (all this happens in rly tx command)
-rly tx link fnsa-fnsa -d -t 3s
+rly --home $RLY_HOME tx link $CHAIN_PATH -d -t 3s
 sleep 2
 
-BAL0=$(rly q bal fnsa-0)
-BAL1=$(rly q bal fnsa-1)
+BAL0=$(rly --home $RLY_HOME q bal $CHAIN0_ID)
+BAL1=$(rly --home $RLY_HOME q bal $CHAIN1_ID)
 
 echo "--  Initial balances --"
 echo "balance 0 $BAL0"
@@ -42,19 +47,19 @@ if [[ "$BAL1" != *"100000000000beans"* ]]; then
 fi
 
 echo "-- Sending IBC transaction... --"
-rly tx transfer fnsa-0 fnsa-1 100000samoleans "$(rly keys show fnsa-1)" channel-0 -d
+rly --home $RLY_HOME tx transfer $CHAIN0_ID $CHAIN1_ID 100000samoleans "$(rly --home $RLY_HOME keys show $CHAIN1_ID)" channel-0 -d
 sleep 5
 
 # relay remaining packets -- (could also be accomplished by running: `rly start`)
-rly tx relay-packets fnsa-fnsa channel-0 -d
+rly --home $RLY_HOME tx relay-packets $CHAIN_PATH channel-0 -d
 sleep 5
 
 # relay remaining acknowledgments -- (could also be accomplished by running: `rly start`)
-rly tx relay-acknowledgements fnsa-fnsa channel-0 -d
+rly --home $RLY_HOME tx relay-acknowledgements $CHAIN_PATH channel-0 -d
 sleep 5
 
-BAL0=$(rly q bal fnsa-0)
-BAL1=$(rly q bal fnsa-1)
+BAL0=$(rly --home $RLY_HOME q bal $CHAIN0_ID)
+BAL1=$(rly --home $RLY_HOME q bal $CHAIN1_ID)
 
 echo "-- Balances after packets are sent --"
 echo "balance 0 $BAL0"
@@ -70,23 +75,23 @@ if [[ "$BAL1" != *"100000000000beans,100000transfer/channel-0/samoleans"* ]]; th
 fi
 
 echo "-- Sending tokens back to original wallet... --"
-rly tx transfer fnsa-1 fnsa-0 100000transfer/channel-0/samoleans "$(rly keys show fnsa-0)" channel-0 -d
+rly --home $RLY_HOME tx transfer $CHAIN1_ID $CHAIN0_ID 100000transfer/channel-0/samoleans "$(rly --home $RLY_HOME keys show $CHAIN0_ID)" channel-0 -d
 sleep 5
 
-rly tx relay-packets fnsa-fnsa channel-0 -d
+rly --home $RLY_HOME tx relay-packets $CHAIN_PATH channel-0 -d
 sleep 5
 
-rly tx relay-acknowledgements fnsa-fnsa channel-0 -d
+rly --home $RLY_HOME tx relay-acknowledgements $CHAIN_PATH channel-0 -d
 sleep 5
 
-BAL0=$(rly q bal fnsa-0)
-BAL1=$(rly q bal fnsa-1)
+BAL0=$(rly --home $RLY_HOME q bal $CHAIN0_ID)
+BAL1=$(rly --home $RLY_HOME q bal $CHAIN1_ID)
 
 echo "-- Balances after sending packets back --"
 echo "balance 0 $BAL0"
 echo "balance 1 $BAL1"
 
-if [[ "$BAL0" != *"{100000000000samoleans"* ]]; then
+if [[ "$BAL0" != *"100000000000samoleans"* ]]; then
   echo "balance 0 is wrong"
   exit 1
 fi
@@ -95,4 +100,5 @@ if [[ "$BAL1" != *"100000000000beans"* ]]; then
   exit 1
 fi
 
-killall simd &> /dev/null
+killall simd &> /dev/null || true
+killall csmssimd &> /dev/null || true
diff --git a/e2e/scripts/chainz b/e2e/scripts/chainz
new file mode 100755
index 000000000000..e1c3355d5cb2
--- /dev/null
+++ b/e2e/scripts/chainz
@@ -0,0 +1,73 @@
+#!/bin/bash
+# two-chainz creates two chains and configures the relayer to 
+
+SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+HOME_DIR="$(pwd)/data"
+RLY_HOME="$HOME_DIR/relayer"
+
+CHAIN0_ID=$1
+CHAIN0_BIN=$2
+CHAIN0_COINID=$3
+CHAIN1_ID=$4
+CHAIN1_BIN=$5
+CHAIN1_COINID=$6
+
+# Ensure binary is installed
+if ! [ -x "$(which $CHAIN0_BIN)" ]; then
+  echo "Error: $CHAIN0_BIN is not installed. Try running 'make bin/$CHAIN0_BIN'" >&2
+  exit 1
+fi
+if ! [ -x "$(which $CHAIN1_BIN)" ]; then
+  echo "Error: $CHAIN1_BIN is not installed. Try running 'make bin/$CHAIN1_BIN'" >&2
+  exit 1
+fi
+
+# Display software version for testers
+echo "BINARY VERSION INFO:"
+$CHAIN0_BIN version --long --log_level=info
+$CHAIN1_BIN version --long --log_level=info
+
+# Ensure jq is installed
+if [[ ! -x "$(which jq)" ]]; then
+  echo "jq (a tool for parsing json in the command line) is required..."
+  echo "https://stedolan.github.io/jq/download/"
+  exit 1
+fi
+
+# Ensure user understands what will be deleted
+if [[ -d $HOME_DIR ]] && [[ ! "$7" == "skip" ]]; then
+  read -p "$(basename $0) will delete \$(pwd)/data and \$HOME/.relayer folders. Do you wish to continue? (y/n): " -n 1 -r
+  echo
+  if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+      exit 1
+  fi
+fi
+
+# Delete data from old runs
+rm -rf $HOME_DIR &> /dev/null
+
+# Stop existing binary processes
+killall simd &> /dev/null
+killall csmssimd &> /dev/null
+
+set -e
+
+echo "Generating fnsa configurations..."
+mkdir -p $HOME_DIR && cd $HOME_DIR && cd ../
+./scripts/one-chain $CHAIN0_BIN $CHAIN0_ID $HOME_DIR 26657 26656 6060 9090 stake samoleans
+./scripts/one-chain $CHAIN1_BIN $CHAIN1_ID $HOME_DIR 26557 26556 6061 9091 rice beans
+
+[ -f $HOME_DIR/$CHAIN0_ID.log ] && echo "$CHAIN0_ID initialized. Watch file $HOME_DIR/$CHAIN0_ID.log to see its execution."
+[ -f $HOME_DIR/$CHAIN1_ID.log ] && echo "$CHAIN1_ID initialized. Watch file $HOME_DIR/$CHAIN1_ID.log to see its execution."
+
+echo "Generating rly configurations..."
+rly --home $RLY_HOME config init
+rly --home $RLY_HOME chains add-dir configs/chains
+
+SEED0=$(jq -r '.mnemonic' $HOME_DIR/$CHAIN0_ID/key_seed.json)
+SEED1=$(jq -r '.mnemonic' $HOME_DIR/$CHAIN1_ID/key_seed.json)
+
+echo "Key $(rly --home $RLY_HOME keys restore $CHAIN0_ID testkey "$SEED0" --coin-type $CHAIN0_COINID) imported from CHAIN0_ID to relayer..."
+echo "Key $(rly --home $RLY_HOME keys restore $CHAIN1_ID testkey "$SEED1" --coin-type $CHAIN1_COINID) imported from CHAIN1_ID to relayer..."
+
+rly --home $RLY_HOME paths add-dir configs/paths
diff --git a/e2e/scripts/fnsa-chainz b/e2e/scripts/fnsa-chainz
deleted file mode 100755
index e9346a4a8e54..000000000000
--- a/e2e/scripts/fnsa-chainz
+++ /dev/null
@@ -1,66 +0,0 @@
-#!/bin/bash
-# two-chainz creates two simd chains and configures the relayer to 
-
-SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
-FNSA_DATA="$(pwd)/data"
-RELAYER_CONF="$HOME/.relayer"
-
-# Ensure simd is installed
-if ! [ -x "$(which simd)" ]; then
-  echo "Error: simd is not installed. Try running 'make install-simapp'" >&2
-  exit 1
-fi
-
-# Display software version for testers
-echo "SIMD VERSION INFO:"
-simd version --long
-
-# Ensure jq is installed
-if [[ ! -x "$(which jq)" ]]; then
-  echo "jq (a tool for parsing json in the command line) is required..."
-  echo "https://stedolan.github.io/jq/download/"
-  exit 1
-fi
-
-# Ensure user understands what will be deleted
-if [[ -d $FNSA_DATA ]] && [[ ! "$1" == "skip" ]]; then
-  read -p "$(basename $0) will delete \$(pwd)/data and \$HOME/.relayer folders. Do you wish to continue? (y/n): " -n 1 -r
-  echo
-  if [[ ! $REPLY =~ ^[Yy]$ ]]; then
-      exit 1
-  fi
-fi
-
-# Delete data from old runs
-rm -rf $FNSA_DATA &> /dev/null
-rm -rf $RELAYER_CONF &> /dev/null
-
-# Stop existing simd processes
-killall gaiad &> /dev/null
-killall akash &> /dev/null
-killall simd &> /dev/null
-
-set -e
-
-chainid0=fnsa-0
-chainid1=fnsa-1
-
-echo "Generating fnsa configurations..."
-mkdir -p $FNSA_DATA && cd $FNSA_DATA && cd ../
-./scripts/one-chain simd $chainid0 ./data 26657 26656 6060 9090 stake samoleans
-./scripts/one-chain simd $chainid1 ./data 26557 26556 6061 9091 rice beans
-
-[ -f $FNSA_DATA/$chainid0.log ] && echo "$chainid0 initialized. Watch file $FNSA_DATA/$chainid0.log to see its execution."
-[ -f $FNSA_DATA/$chainid1.log ] && echo "$chainid1 initialized. Watch file $FNSA_DATA/$chainid1.log to see its execution."
-
-echo "Generating rly configurations..."
-rly config init
-rly chains add-dir configs/chains
-
-SEED0=$(jq -r '.mnemonic' $FNSA_DATA/fnsa-0/key_seed.json)
-SEED1=$(jq -r '.mnemonic' $FNSA_DATA/fnsa-1/key_seed.json)
-COINID=438
-echo "Key $(rly keys restore fnsa-0 testkey "$SEED0" --coin-type $COINID) imported from fnsa-0 to relayer..."
-echo "Key $(rly keys restore fnsa-1 testkey "$SEED1" --coin-type $COINID) imported from fnsa-1 to relayer..."
-
-rly paths add-dir configs/paths