diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 240a21da98..1583004722 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -8,9 +8,6 @@ on:
     tags:
       - v[0-9]+.*
 
-env:
-  REGISTRY_IMAGE: informalsystems/hermes
-
 jobs:
   create-release:
     runs-on: ubuntu-latest
@@ -62,113 +59,3 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           # (optional)
           CARGO_PROFILE_RELEASE_LTO: true
-
-  docker-build:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        platform:
-          - linux/amd64
-          - linux/arm64
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-
-      - name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v4
-        with:
-          images: ${{ env.REGISTRY_IMAGE }}
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
-
-      - name: Set up Docker Buildx
-        id: buildx
-        uses: docker/setup-buildx-action@v2
-
-      - name: Login to Docker Hub
-        uses: docker/login-action@v2
-        with:
-          username: ${{ secrets.DOCKER_HUB_USERNAME }}
-          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
-
-      - name: Get release version
-        run: echo "TAG=${GITHUB_REF#refs/tags/v}" >> $GITHUB_ENV
-
-      - name: Build and push by digest
-        id: build
-        uses: docker/build-push-action@v4
-        with:
-          context: ./ci/release/
-          file: ./ci/release/hermes.Dockerfile
-          build-args: TAG=v${{env.TAG}}
-          platforms: ${{ matrix.platform }}
-          labels: ${{ steps.meta.outputs.labels }}
-          outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
-
-      - name: Export digest
-        run: |
-          mkdir -p /tmp/digests
-          digest="${{ steps.build.outputs.digest }}"
-          touch "/tmp/digests/${digest#sha256:}"
-
-      - name: Upload digest
-        uses: actions/upload-artifact@v3
-        with:
-          name: digests
-          path: /tmp/digests/*
-          if-no-files-found: error
-          retention-days: 1
-
-  docker-merge:
-    runs-on: ubuntu-latest
-    needs:
-      - docker-build
-    steps:
-      - name: Download digests
-        uses: actions/download-artifact@v3
-        with:
-          name: digests
-          path: /tmp/digests
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
-
-      - name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v4
-        with:
-          images: ${{ env.REGISTRY_IMAGE }}
-
-      - name: Login to Docker Hub
-        uses: docker/login-action@v2
-        with:
-          username: ${{ secrets.DOCKER_HUB_USERNAME }}
-          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
-
-      - name: Create manifest list and push
-        working-directory: /tmp/digests
-        run: |
-          docker buildx imagetools create --tag ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }} \
-            $(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *)
-
-      - name: Inspect image
-        run: |
-          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }}
-
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v2
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Push image to GHCR
-        run: |
-          docker buildx imagetools create \
-            --tag ghcr.io/${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }} \
-            ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }}
diff --git a/.gitignore b/.gitignore
index 2e9b0e8816..29b5605e72 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,7 @@ target/
 
 # Ignore chain's data
 data
+namada_wallet
 
 # Ignore Python artifacts
 .mypy_cache/
diff --git a/e2e/namada-test.sh b/e2e/namada-e2e-test
similarity index 93%
rename from e2e/namada-test.sh
rename to e2e/namada-e2e-test
index abeaea6447..e3d67dc957 100755
--- a/e2e/namada-test.sh
+++ b/e2e/namada-e2e-test
@@ -2,7 +2,7 @@
 
 # This script executes Hermes' E2E test for Namada locally
 # `make build-release` and `make build-wasm-scripts` on Namada directory in advance
-# Run with `namada-test.sh ${namada_dir}`
+# Run with `namada-e2e-test ${namada_dir}`
 
 set -xe
 
@@ -49,7 +49,7 @@ function init_relayer_balance() {
 # ==== main ====
 
 # Run 2 Namada chains
-${HERMES_DIR}/scripts/setup-namada.sh ${NAMADA_DIR}
+${HERMES_DIR}/scripts/setup-namada ${NAMADA_DIR}
 
 # Initialize the balances
 init_relayer_balance "a" ${LEDGER_ADDR_A}
diff --git a/e2e/namada-gaia-simple-transfers b/e2e/namada-gaia-simple-transfers
new file mode 100755
index 0000000000..570d5853e0
--- /dev/null
+++ b/e2e/namada-gaia-simple-transfers
@@ -0,0 +1,242 @@
+#!/bin/bash
+
+# This script sets up Namada and Gaia locally
+# `make build-release` and `make build-wasm-scripts` on Namada directory in advance
+# Run with `namada-gaia-simple-transfers ${namada_dir}`
+
+set -e
+
+NAMADA_DIR=$1
+if [ -z "${NAMADA_DIR}" ]
+then
+  echo "ERROR: Namada directory should be given"
+  exit 1
+fi
+cd $(dirname $0)
+HERMES_DIR=${PWD%/e2e*}
+
+# edit for your environment
+NAMADAC="${NAMADA_DIR}/target/debug/namadac"
+NAMADAN="${NAMADA_DIR}/target/debug/namadan"
+NAMADAW="${NAMADA_DIR}/target/debug/namadaw"
+BASE_GENESIS_PATH="${NAMADA_DIR}/genesis/e2e-tests-single-node.toml"
+CHECKSUM_PATH="${NAMADA_DIR}/wasm/checksums.json"
+DATA_DIR="${HERMES_DIR}/data"
+GENESIS_PATH="${DATA_DIR}/e2e-tests-single-node.toml"
+# IbcToken from `transfer/channel-0/samoleans`
+IBC_TOKEN="atest1d93xxw36xgmkzd3n8y6xxvmx89nxvwtr89jxxe34v3nxvctyvcukyc34vejnjcfnxa3nwefe6325dv"
+
+NAMADA_LEDGER_ADDR="127.0.0.1:27657"
+
+HERMES_CONFIG_TEMPLATE="
+[global]
+log_level = 'info'
+
+[mode]
+
+[mode.clients]
+enabled = true
+refresh = true
+misbehaviour = true
+
+[mode.connections]
+enabled = false
+
+[mode.channels]
+enabled = false
+
+[mode.packets]
+enabled = true
+clear_interval = 10
+clear_on_start = false
+tx_confirmation = true
+
+[telemetry]
+enabled = false
+host = '127.0.0.1'
+port = 3001
+
+[[chains]]
+id = '_CHAIN_ID_'
+type = 'namada'
+rpc_addr = 'http://127.0.0.1:27657'
+grpc_addr = 'http://127.0.0.1:9090'
+event_source = { mode = 'push', url = 'ws://127.0.0.1:27657/websocket', batch_delay = '500ms' }
+account_prefix = 'cosmos'
+key_name = 'relayer'
+store_prefix = 'ibc'
+gas_price = { price = 0.001, denom = 'nam' }
+
+[[chains]]
+id = 'gaia'
+type = 'cosmos-sdk'
+rpc_addr = 'http://127.0.0.1:26657'
+grpc_addr = 'http://127.0.0.1:9090'
+event_source = { mode = 'push', url = 'ws://127.0.0.1:26657/websocket', batch_delay = '500ms' }
+account_prefix = 'cosmos'
+key_name = 'testkey'
+store_prefix = 'ibc'
+gas_price = { price = 0.001, denom = 'stake' }
+"
+
+function init_relayer_balance() {
+  local base_dir=${DATA_DIR}/namada/.namada
+
+  local cnt=0
+  local cnt_max=10
+  while [ ${cnt} -lt ${cnt_max} ]
+  do
+      ${NAMADAC} --base-dir ${base_dir} \
+        transfer \
+        --source faucet \
+        --target relayer \
+        --token nam \
+        --amount 1000 \
+        --signer relayer \
+        --ledger-address ${NAMADA_LEDGER_ADDR}
+
+      cnt=$((${cnt} + 1))
+  done
+}
+
+#### main ####
+mkdir -p ${DATA_DIR}
+
+# Gaia
+rm -rf ${DATA_DIR}/gaia
+
+${HERMES_DIR}/scripts/one-chain gaiad gaia ${DATA_DIR} \
+  26657 26656 6060 9090 10000
+
+# Namada
+# make a genesis file
+sed "s/epochs_per_year = .*/epochs_per_year = 31536/g" \
+  ${BASE_GENESIS_PATH} > ${GENESIS_PATH}
+mkdir -p ${DATA_DIR}/namada
+base_dir=${DATA_DIR}/namada/.namada
+# init network
+chain_id=$(NAMADA_BASE_DIR=${base_dir} \
+  ${NAMADAC} utils init-network \
+  --unsafe-dont-encrypt \
+  --genesis-path ${GENESIS_PATH} \
+  --chain-prefix namada-test \
+  --localhost \
+  --dont-archive \
+  --wasm-checksums-path ${CHECKSUM_PATH} \
+  | awk '$1 == "Derived" {print $4}')
+
+# copy wasms
+cp ${NAMADA_DIR}/wasm/checksums.json ${base_dir}/${chain_id}/setup/validator-0/.namada/${chain_id}/wasm/
+cp ${NAMADA_DIR}/wasm/*.wasm ${base_dir}/${chain_id}/setup/validator-0/.namada/${chain_id}/wasm/
+
+# Run Namada
+NAMADA_LOG=debug ${NAMADAN} --base-dir ${base_dir}/${chain_id}/setup/validator-0/.namada/ \
+  ledger run > ${DATA_DIR}/namada/namada.log 2>&1 &
+echo "Namada chain ID: ${chain_id}"
+sleep 5
+
+# set the wallet
+${NAMADAW} --base-dir ${base_dir} key gen --alias relayer --unsafe-dont-encrypt
+wallet_dir=${HERMES_DIR}/namada_wallet/${chain_id}
+mkdir -p ${wallet_dir}
+cp ${base_dir}/${chain_id}/wallet.toml ${wallet_dir}
+
+# Set the chain ID to the config
+cd ${HERMES_DIR}
+echo "${HERMES_CONFIG_TEMPLATE}" \
+  | sed -e "s/_CHAIN_ID_/${chain_id}/g" \
+  > ${HERMES_DIR}/config_for_namada.toml
+
+# add Gaia key
+cargo run -q --bin hermes -- --config config_for_namada.toml \
+  keys add --chain gaia --key-file ${DATA_DIR}/gaia/user_seed.json --overwrite
+
+# Initialize Relayer's balance on Namada
+init_relayer_balance
+
+# create a channel
+cargo run --bin hermes -- --config config_for_namada.toml \
+  create channel --a-chain ${chain_id} \
+  --b-chain gaia \
+  --a-port transfer \
+  --b-port transfer \
+  --new-client-connection --yes
+
+
+# Transfer 100 samoleans from Gaia to Namada
+namada_receiver=$(${NAMADAW} --base-dir ${base_dir} address find --alias relayer | awk '{print $4}')
+cargo run --bin hermes -- --config config_for_namada.toml \
+  tx ft-transfer \
+  --dst-chain ${chain_id} \
+  --src-chain gaia \
+  --src-port transfer \
+  --src-channel channel-0 \
+  --amount 100 \
+  --receiver ${namada_receiver} \
+  --denom samoleans \
+  --timeout-height-offset 1000
+
+# packet-recv
+cargo run --bin hermes -- --config config_for_namada.toml \
+  tx packet-recv \
+  --dst-chain ${chain_id} \
+  --src-chain gaia \
+  --src-port transfer \
+  --src-channel channel-0
+
+# packet-ack
+cargo run --bin hermes -- --config config_for_namada.toml \
+  tx packet-ack \
+  --dst-chain gaia \
+  --src-chain ${chain_id} \
+  --src-port transfer \
+  --src-channel channel-0
+
+echo "Balances on Namada"
+${NAMADAC} --base-dir ${base_dir} balance \
+  --token ${IBC_TOKEN} \
+  --owner relayer \
+  --ledger-address ${NAMADA_LEDGER_ADDR}
+
+echo "Balances on Gaia"
+gaia_user=$(gaiad --home ${DATA_DIR}/gaia \
+  keys --keyring-backend="test" show user -a)
+gaiad query bank balances ${gaia_user}
+
+# transfer back 50 samoleans from Namada to Gaia
+${NAMADAC} --base-dir ${base_dir} ibc-transfer \
+  --source relayer \
+  --receiver ${gaia_user} \
+  --token ${IBC_TOKEN} \
+  --amount 50 \
+  --signer relayer \
+  --channel-id channel-0 \
+  --ledger-address ${NAMADA_LEDGER_ADDR}
+
+# packet-recv
+cargo run --bin hermes -- --config config_for_namada.toml \
+  tx packet-recv \
+  --dst-chain gaia \
+  --src-chain ${chain_id} \
+  --src-port transfer \
+  --src-channel channel-0
+
+# packet-ack
+cargo run --bin hermes -- --config config_for_namada.toml \
+  tx packet-ack \
+  --dst-chain ${chain_id} \
+  --src-chain gaia \
+  --src-port transfer \
+  --src-channel channel-0
+
+echo "Balances on Namada"
+${NAMADAC} --base-dir ${base_dir} balance \
+  --token ${IBC_TOKEN} \
+  --owner relayer \
+  --ledger-address ${NAMADA_LEDGER_ADDR}
+
+echo "Balances on Gaia"
+gaiad query bank balances ${gaia_user}
+
+killall gaiad
+killall namadan
diff --git a/e2e/namada-simple-transfers b/e2e/namada-simple-transfers
new file mode 100755
index 0000000000..6893b0be92
--- /dev/null
+++ b/e2e/namada-simple-transfers
@@ -0,0 +1,161 @@
+#!/bin/bash
+
+# This script executes simple transfers between Namada instances locally
+# `make build-release` and `make build-wasm-scripts` on Namada directory in advance
+# Run with `namada-simple-transfers ${namada_dir}`
+
+set -e
+
+NAMADA_DIR=$1
+if [ -z "${NAMADA_DIR}" ]
+then
+  echo "ERROR: Namada directory should be given"
+  exit 1
+fi
+cd $(dirname $0)
+HERMES_DIR=${PWD%/e2e*}
+
+NAMADAC="${NAMADA_DIR}/target/debug/namadac"
+NAMADAW="${NAMADA_DIR}/target/debug/namadaw"
+DATA_DIR="${HERMES_DIR}/data"
+# IbcToken from `transfer/channel-0/#apfel`
+IBC_TOKEN="atest1d93xxw36xqckvdn9vgcxyv3jvyurqdrr89jrwvmxxcexxdnpx5cnyv3ex93kvepnxdjnqvrzucsc73"
+
+LEDGER_ADDR_A="127.0.0.1:27657"
+LEDGER_ADDR_B="127.0.0.1:28657"
+INITIAL_BALANCE=5000
+
+function init_relayer_balance() {
+  local suffix=$1
+  local ledger_addr=$2
+
+  local base_dir=${DATA_DIR}/namada-${suffix}/.namada
+
+  local cnt=0
+  local cnt_max=$((${INITIAL_BALANCE} / 1000))
+  while [ ${cnt} -lt ${cnt_max} ]
+  do
+      ${NAMADAC} --base-dir ${base_dir} \
+        transfer \
+        --source faucet \
+        --target relayer \
+        --token nam \
+        --amount 1000 \
+        --signer relayer \
+        --ledger-address ${ledger_addr}
+
+      cnt=$((${cnt} + 1))
+  done
+}
+
+# ==== main ====
+
+# Run 2 Namada chains
+${HERMES_DIR}/scripts/setup-namada ${NAMADA_DIR}
+
+cd ${HERMES_DIR}
+ids=$(grep "id" config_for_namada.toml | awk -F"'" '/^id/ {print $2}')
+chain_a=$(echo ${ids} | awk '{print $1}')
+chain_b=$(echo ${ids} | awk '{print $2}')
+
+# Initialize the balances
+init_relayer_balance "a" ${LEDGER_ADDR_A}
+init_relayer_balance "b" ${LEDGER_ADDR_B}
+
+# Create a channel
+cargo run --bin hermes -- --config config_for_namada.toml \
+  create channel \
+  --a-chain ${chain_a} \
+  --b-chain ${chain_b} \
+  --a-port transfer \
+  --b-port transfer \
+  --new-client-connection --yes
+
+# faucet apfel on chain_a
+base_dir_a=${DATA_DIR}/namada-a/.namada
+${NAMADAC} --base-dir ${base_dir_a} transfer \
+  --source faucet \
+  --target relayer \
+  --token apfel \
+  --amount 1000 \
+  --signer relayer \
+  --ledger-address ${LEDGER_ADDR_A}
+
+# Get the receiver addresses
+receiver_a=$(${NAMADAW} --base-dir ${base_dir_a} address find --alias relayer | awk '{print $4}')
+base_dir_b=${DATA_DIR}/namada-b/.namada
+receiver_b=$(${NAMADAW} --base-dir ${base_dir_b} address find --alias relayer | awk '{print $4}')
+
+# transfer 100 apfel from chain_a to chain_b
+${NAMADAC} --base-dir ${base_dir_a} ibc-transfer \
+  --source relayer \
+  --receiver ${receiver_b} \
+  --token apfel \
+  --amount 100 \
+  --signer relayer \
+  --channel-id channel-0 \
+  --ledger-address ${LEDGER_ADDR_A}
+
+# packet-recv
+cargo run --bin hermes -- --config config_for_namada.toml \
+  tx packet-recv \
+  --dst-chain ${chain_b} \
+  --src-chain ${chain_a} \
+  --src-port transfer \
+  --src-channel channel-0
+
+# packet-ack
+cargo run --bin hermes -- --config config_for_namada.toml \
+  tx packet-ack \
+  --dst-chain ${chain_a} \
+  --src-chain ${chain_b} \
+  --src-port transfer \
+  --src-channel channel-0
+
+echo "Balances on chain A"
+${NAMADAC} --base-dir ${base_dir_a} balance \
+  --owner relayer \
+  --ledger-address ${LEDGER_ADDR_A}
+
+echo "Balances on chain B"
+${NAMADAC} --base-dir ${base_dir_b} balance \
+  --owner relayer \
+  --ledger-address ${LEDGER_ADDR_B}
+
+# transfer back 50 apfel from chain_b to chain_a
+${NAMADAC} --base-dir ${base_dir_b} ibc-transfer \
+  --source relayer \
+  --receiver ${receiver_a} \
+  --token ${IBC_TOKEN} \
+  --amount 50 \
+  --signer relayer \
+  --channel-id channel-0 \
+  --ledger-address ${LEDGER_ADDR_B}
+
+# packet-recv
+cargo run --bin hermes -- --config config_for_namada.toml \
+  tx packet-recv \
+  --dst-chain ${chain_a} \
+  --src-chain ${chain_b} \
+  --src-port transfer \
+  --src-channel channel-0
+
+# packet-ack
+cargo run --bin hermes -- --config config_for_namada.toml \
+  tx packet-ack \
+  --dst-chain ${chain_b} \
+  --src-chain ${chain_a} \
+  --src-port transfer \
+  --src-channel channel-0
+
+echo "Balances on chain A"
+${NAMADAC} --base-dir ${base_dir_a} balance \
+  --owner relayer \
+  --ledger-address ${LEDGER_ADDR_A}
+
+echo "Balances on chain B"
+${NAMADAC} --base-dir ${base_dir_b} balance \
+  --owner relayer \
+  --ledger-address ${LEDGER_ADDR_B}
+
+killall namadan
diff --git a/scripts/join-namada.sh b/scripts/join-namada
similarity index 100%
rename from scripts/join-namada.sh
rename to scripts/join-namada
diff --git a/scripts/setup-namada.sh b/scripts/setup-namada
similarity index 100%
rename from scripts/setup-namada.sh
rename to scripts/setup-namada