diff --git a/deployments/relayer/README.md b/deployments/relayer/README.md
index 053cd042c2..ae2b1ffbea 100644
--- a/deployments/relayer/README.md
+++ b/deployments/relayer/README.md
@@ -9,9 +9,13 @@ from testnet-preview to testnet.
 ```
 ./generate-configs preview
 ./generate-configs testnet
-./configure-relayer penumbra-preview penumbra-testnet
+./configure-relayer
+
 ./run-relayer
 ```
+Or, you can use `just` to run it all, soup to nuts. See the path configuration
+block in the `./configure-relayer` script for some example paths between chains
+that aren't yet known to work.
 
 ## Further reading
 The config format for the JSON files are adapted from the [example-configs](https://github.com/cosmos/relayer/tree/main/docs/example-configs)
@@ -19,3 +23,5 @@ in the relayer repo. Our configs will get out of date very quickly: the preview
 on every merge into main, for instance. Short-term, that's fine: we want to exercise IBC
 in our CI deployments, and dynamically generating the configs is good enough. Longer term, we'll want
 to upload our configs to the [chain-registry repo](https://github.com/cosmos/chain-registry).
+Full documentation on the underlying steps used by the relayer can be found in the
+[cross-chain docs](https://github.com/cosmos/relayer/blob/main/docs/create-path-across-chain.md).
diff --git a/deployments/relayer/configs/babylon-testnet.json b/deployments/relayer/configs/babylon-testnet.json
new file mode 100644
index 0000000000..fe36ff83d8
--- /dev/null
+++ b/deployments/relayer/configs/babylon-testnet.json
@@ -0,0 +1,16 @@
+{
+  "type": "cosmos",
+  "value": {
+    "key": "default",
+    "chain-id": "bbn-test1",
+    "rpc-addr": "http://rpc.testnet.babylonchain.io:26657",
+    "account-prefix": "bbn",
+    "keyring-backend": "test",
+    "gas-adjustment": 1.0,
+    "gas-prices": "0.00bbn",
+    "debug": true,
+    "timeout": "20s",
+    "output-format": "json",
+    "sign-mode": "direct"
+  }
+}
diff --git a/deployments/relayer/configs/celestia-testnet.json b/deployments/relayer/configs/celestia-testnet.json
new file mode 100644
index 0000000000..c41e780bbe
--- /dev/null
+++ b/deployments/relayer/configs/celestia-testnet.json
@@ -0,0 +1,16 @@
+{
+  "type": "cosmos",
+  "value": {
+    "key": "default",
+    "chain-id": "blockspacerace-0",
+    "rpc-addr": "https://celestia-blockspacerace-rpc.brocha.in:443",
+    "account-prefix": "celestia",
+    "keyring-backend": "test",
+    "gas-adjustment": 1.0,
+    "gas-prices": "0.00utia",
+    "debug": true,
+    "timeout": "20s",
+    "output-format": "json",
+    "sign-mode": "direct"
+  }
+}
diff --git a/deployments/relayer/configs/cosmwasm-testnet.json b/deployments/relayer/configs/cosmwasm-testnet.json
new file mode 100644
index 0000000000..81d91e481e
--- /dev/null
+++ b/deployments/relayer/configs/cosmwasm-testnet.json
@@ -0,0 +1,16 @@
+{
+  "type": "cosmos",
+  "value": {
+    "key": "default",
+    "chain-id": "malaga-420",
+    "rpc-addr": "https://rpc.malaga-420.cosmwasm.com:443",
+    "account-prefix": "wasm",
+    "keyring-backend": "test",
+    "gas-adjustment": 1.0,
+    "gas-prices": "0.03umlg",
+    "debug": true,
+    "timeout": "20s",
+    "output-format": "json",
+    "sign-mode": "direct"
+  }
+}
diff --git a/deployments/relayer/configs/osmosis-testnet.json b/deployments/relayer/configs/osmosis-testnet.json
new file mode 100644
index 0000000000..0492ffd87b
--- /dev/null
+++ b/deployments/relayer/configs/osmosis-testnet.json
@@ -0,0 +1,16 @@
+{
+  "type": "cosmos",
+  "value": {
+    "key": "default",
+    "chain-id": "osmo-test-4",
+    "rpc-addr": "https://rpc.testnet.osmosis.zone:443",
+    "account-prefix": "osmo",
+    "keyring-backend": "test",
+    "gas-adjustment": 1.0,
+    "gas-prices": "0.00uosmo",
+    "debug": true,
+    "timeout": "20s",
+    "output-format": "json",
+    "sign-mode": "direct"
+  }
+}
diff --git a/deployments/relayer/configs/penumbra-preview.json b/deployments/relayer/configs/penumbra-preview.json
index ebf959c027..cf858f5e08 100644
--- a/deployments/relayer/configs/penumbra-preview.json
+++ b/deployments/relayer/configs/penumbra-preview.json
@@ -2,7 +2,7 @@
   "type": "penumbra",
   "value": {
     "key": "default",
-    "chain-id": "penumbra-testnet-pasiphae-5d99ea66",
+    "chain-id": "penumbra-testnet-pasiphae-fceecc9b",
     "rpc-addr": "https://rpc.testnet-preview.penumbra.zone:443",
     "account-prefix": "penumbrav2t",
     "keyring-backend": "test",
diff --git a/deployments/relayer/configure-relayer b/deployments/relayer/configure-relayer
index a239049151..d9f99fbef2 100755
--- a/deployments/relayer/configure-relayer
+++ b/deployments/relayer/configure-relayer
@@ -4,17 +4,6 @@
 # https://github.com/cosmos/relayer/
 set -euo pipefail
 
-if [[ $# -lt 2 ]] ; then
-    >&2 echo "ERROR: networks not specified. Use, e.g., 'penumbra-testnet penumbra-preview'."
-    >&2 echo "Usage: $0 <network-1> <network-2>"
-    exit 1
-fi
-
-chain_a="$1"
-chain_b="$2"
-shift 2
-
-
 rm -rf ~/.relayer
 rly config init --memo "Automatic IBC for Penumbra, via relayer"
 
@@ -26,17 +15,48 @@ rly chains add-dir configs/
 # If we skip keygen, though, then `rly transact link <path>` shows an error:
 #
 #   Error: key default not found on src chain penumbra-testnet-carme-dac8be27
->&2 echo "Generating key for $chain_a:"
-rly keys add "$chain_a" default
->&2 echo "Generating key for $chain_b:"
-rly keys add "$chain_b" default
-
-# Configure paths. We can't fetch from an external registry, so we'll
-# need to munge the YAML config directly. See docs at
-# https://github.com/cosmos/relayer/blob/main/docs/create-path-across-chain.md
-chain_a_id="$(jq -r '.value["chain-id"]' "configs/${chain_a}.json")"
-chain_b_id="$(jq -r '.value["chain-id"]' "configs/${chain_b}.json")"
-rly paths new "$chain_a_id" "$chain_b_id" penumbra_path
+for chain in $(rly chains list --json | jq 'keys | join("\n")' -r) ; do
+    >&2 echo "Generating key for $chain"
+    rly keys add "$chain" default
+done
+
+function create_paths() {
+    if [[ $# -lt 3 ]] ; then
+        >&2 echo "ERROR: networks not specified. Use, e.g., 'penumbra-testnet penumbra-preview'."
+        >&2 echo "Usage: $0 <network-1> <network-2> <path-name>"
+        return 1
+    fi
+
+    local chain_a="$1"
+    local chain_b="$2"
+    local path_name="$3"
+    shift 3
+
+    # Make sure requested chain configs exist locally. This won't be necessary
+    # when the referenced chains exist in the upstream public chain registry.
+    if [[ ! -e "configs/${chain_a}.json" ]]; then
+        >&2 echo "ERROR: file not found: configs/${chain_a}.json"
+        return 2
+    elif [[ ! -e "configs/${chain_b}.json" ]]; then
+        >&2 echo "ERROR: file not found: configs/${chain_b}.json"
+        return 2
+    fi
+
+    chain_a_id="$(jq -r '.value["chain-id"]' "configs/${chain_a}.json")"
+    chain_b_id="$(jq -r '.value["chain-id"]' "configs/${chain_b}.json")"
+    rly paths new "$chain_a_id" "$chain_b_id" "$path_name"
+}
+
+# Create Penumbra-only path, between preview and testnet. Works!
+create_paths penumbra-testnet penumbra-preview penumbra_path
+
+# Create paths between Penumbra and/or other Cosmos-adjacent testnets.
+# These are not working yet, so commenting them out by default.
+#
+# create_paths penumbra-preview babylon-testnet babylon
+# create_paths osmosis-testnet babylon-testnet osmosis
+# create_paths osmosis-testnet cosmwasm-testnet osmosis-wasm
+# create_paths osmosis-testnet celestia-testnet osmosis-celestia
 
 >&2 echo "Emitting status info:"
 rly chains list
diff --git a/deployments/relayer/generate-configs b/deployments/relayer/generate-configs
index 115298df5d..e0916d1860 100755
--- a/deployments/relayer/generate-configs
+++ b/deployments/relayer/generate-configs
@@ -14,7 +14,7 @@ function get_chain_id() {
     local u
     u="${1:-}"
     shift 1
-    curl -s "${u}/status" | jq -r .result.node_info.network
+    curl -sSf "${u}/status" | jq -r .result.node_info.network
 }
 
 case $penumbra_network in
diff --git a/deployments/relayer/justfile b/deployments/relayer/justfile
index f0983277e8..86b4843e3a 100644
--- a/deployments/relayer/justfile
+++ b/deployments/relayer/justfile
@@ -7,5 +7,5 @@ configs:
     ./generate-configs testnet
 
 run:
-    ./configure-relayer penumbra-testnet penumbra-preview
+    ./configure-relayer
     ./run-relayer
diff --git a/deployments/relayer/run-relayer b/deployments/relayer/run-relayer
index dd60fdc634..cb4b08ea84 100755
--- a/deployments/relayer/run-relayer
+++ b/deployments/relayer/run-relayer
@@ -1,10 +1,24 @@
 #!/bin/bash
 # Wrapper script to finalize configuration on relayer,
 # and submit a transaction to verify manual relaying of cross-chain
-# info for Penumbra.
+# info for Penumbra. We look up all paths configured in the relayer,
+# and attempt to build a link across them.
+set -euo pipefail
 
 
->&2 echo "Attempting to 'transact link' the path..."
-rly --debug transact link penumbra_path
->&2 echo "Finished! No errors encountered setting up link. Available paths:"
+# Function to add green bg to text, so it stands out amid
+# a wall of debug logs.
+function visible_log() {
+    local s="$1"
+    shift
+    >&2 printf '\e[42m%s\e[0m\n' "$s"
+}
+
+while read -r p ; do
+    visible_log "Attempting to 'transact link' the $p path..."
+    rly --debug transact link "$p"
+# We reverse-sort so that "penumbra" (which works) comes before "babylon" (which doesn't work, yet).
+done < <(rly paths list --json | jq 'keys | join ("\n")' -r | sort -r)
+
+visible_log "Finished! No errors encountered setting up link. Available paths:"
 rly paths list