diff --git a/.woodpecker.yml b/.woodpecker.yml
new file mode 100644
index 0000000..ce6fcaf
--- /dev/null
+++ b/.woodpecker.yml
@@ -0,0 +1,5 @@
+steps:
+  lint:
+    image: koalaman/shellcheck
+    commands:
+      - shellcheck entrypoint.sh
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..b841600
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,22 @@
+MIT License
+
+Copyright (c) 2023 Alexander "PapaTutuWawa"
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..d8497b4
--- /dev/null
+++ b/README.md
@@ -0,0 +1,46 @@
+# woodpecker-xmpp
+
+A simple plugin for [Woodpecker CI](https://woodpecker-ci.org/) that allows sending notifications
+about the pipeline status using XMPP (direct messages or MUC messages).
+
+The plugin is just a small shell script wrapping [go-sendxmpp](https://salsa.debian.org/mdosch/go-sendxmpp).
+
+## Config
+
+In order for the plugin to work, the following secrets must be set:
+
+| Secret | Description |
+| --- | --- |
+| `xmpp_jid` | The JID to authenticate as |
+| `xmpp_password` | The password to authenticate with |
+
+If your server has special connection parameters (hostname:port), then you can also
+specify the `xmpp_server` secret to something like `example.org:443`.
+
+Plaintext configuration options for the plugin are:
+
+| Setting | Description ]
+| --- | --- |
+| `xmpp_tls` | If set, enables direct TLS |
+| `xmpp_is_muc` | If set, tells go-sendxmpp that the message is to be sent to a groupchat |
+| `xmpp_recipient` | The recipient (XMPP account or MUC) of the message |
+| `xmpp_alias` | The nickname to use when joining the MUC. Has no effect if `xmpp_is_muc` is not set |
+
+## Testing
+
+Build the image using docker or podman as `papatutuwawa/woodpecker-xmpp` and run
+
+```
+docker run --rm \
+  -e CI_BUILD_STATUS=success \
+  -e CI_COMMIT_HASH=aaaaaaaaa \
+  -e CI_REPO=example-user/repo \
+  -e XMPP_JID=user@example.org \
+  -e XMPP_PASSWORD=s3cr3t-p4ssw0rd \
+  -e PLUGIN_XMPP_RECIPIENT=other-jid@example.org \
+  papatutuwawa/woodpecker-xmpp
+```
+
+## License
+
+See `./LICENSE`.
diff --git a/entrypoint.sh b/entrypoint.sh
index b30ee89..df252e6 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,26 +1,37 @@
 #!/bin/bash
+# Allow debugging
+[[ -n "${PLUGIN_DEBUG}" ]] && set -x
+
+# Set the correct message
 if [[ "${CI_BUILD_STATUS}" = "success" ]]; then
-  MESSAGE="✔️  Build for ${CI_COMMIT_SHA} on ${CI_REPO} succeeded."
+  MESSAGE="✔️  Pipeline for ${CI_COMMIT_SHA} on ${CI_REPO} succeeded."
 else
-  MESSAGE="❌ Build for ${CI_COMMIT_SHA} on ${CI_REPO} failed on ${CI_MACHINE} (${CI_SYSTEM_ARCH}).\nSee ${CI_BUILD_LINK}"
+  MESSAGE="❌ Pipeline for ${CI_COMMIT_SHA} on ${CI_REPO} failed on ${CI_MACHINE} (${CI_SYSTEM_ARCH}).\nSee ${CI_BUILD_LINK}"
 fi
 
+# Tell go-sendxmpp about the server to connect to, if specified
 SERVER_DETAILS=""
-if [[ ! -z "${XMPP_SERVER}" ]]; then
+if [[ -n "${XMPP_SERVER}" ]]; then
   SERVER_DETAILS=(-j "${XMPP_SERVER}")
 fi
 
+# Force TLS, if configured
 SERVER_TLS=""
-if [[ ! -z "${PLUGIN_XMPP_TLS}" ]]; then
+if [[ -n "${PLUGIN_XMPP_TLS}" ]]; then
   SERVER_TLS=--tls
 fi
 
+# Enable groupchat settings, if configured.
 GROUPCHAT=""
-if [[ ! -z "${PLUGIN_XMPP_IS_MUC}" ]]; then
+if [[ -n "${PLUGIN_XMPP_IS_MUC}" ]]; then
   GROUPCHAT="-c"
 
   # Make the bot nickname configurable
-  BOT_ALIAS=(-a ${PLUGIN_XMPP_ALIAS:-"Woodpecker CI"})
+  BOT_ALIAS=(-a "${PLUGIN_XMPP_ALIAS:-"Woodpecker CI"}")
 fi
 
-echo -e "$MESSAGE" | go-sendxmpp -u ${XMPP_JID} -p ${XMPP_PASSWORD} ${SERVER_DETAILS[@]} ${SERVER_TLS} ${BOT_ALIAS} ${GROUPCHAT} ${PLUGIN_XMPP_MUC}
+# "Post" the message
+# Disable SC2086 (double quote to prevent word splitting) and SC2068 (double quote array expansion to prevent word splitting)
+# because we DO want word splitting here.
+# shellcheck disable=SC2086,SC2068
+echo -e "$MESSAGE" | go-sendxmpp -u ${XMPP_JID} -p ${XMPP_PASSWORD} ${SERVER_DETAILS[@]} ${SERVER_TLS} ${BOT_ALIAS[@]} ${GROUPCHAT} ${PLUGIN_XMPP_RECIPIENT}