diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..c13969d
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "erpnext/frappe_docker"]
+	path = erpnext/frappe_docker
+	url = https://github.com/frappe/frappe_docker
diff --git a/erpnext/.gitignore b/erpnext/.gitignore
new file mode 100644
index 0000000..b5694f8
--- /dev/null
+++ b/erpnext/.gitignore
@@ -0,0 +1,3 @@
+.env
+secret.env
+docker-compose.yml
diff --git a/erpnext/README.md b/erpnext/README.md
new file mode 100644
index 0000000..c6baab6
--- /dev/null
+++ b/erpnext/README.md
@@ -0,0 +1,3 @@
+# ERPNext
+
+Containerfile for the ERPNext backend with the HRMS module included as well as a generator for the Docker Compose config used by JILITS.
diff --git a/erpnext/backend.Containerfile b/erpnext/backend.Containerfile
new file mode 100644
index 0000000..ebd6862
--- /dev/null
+++ b/erpnext/backend.Containerfile
@@ -0,0 +1,17 @@
+ARG ERPNEXT_VERSION
+FROM alpine:latest
+RUN \
+    cd /tmp; \
+    apk add tar wget; \
+    wget https://github.com/frappe/hrms/archive/refs/tags/v1.0.0.tar.gz -O "release.tgz"; \
+    mkdir "release"; \
+    tar -zxvf "release.tgz" -C "release"; \
+    mv "$(find release -mindepth 1 -maxdepth 1 -type d)" "/app";
+
+FROM frappe/erpnext-worker:${ERPNEXT_VERSION}
+ARG APP_NAME="hrms"
+USER root
+COPY --from=0 /app/ ../apps/${APP_NAME}/
+RUN chown -R frappe:frappe ../apps/${APP_NAME}/
+RUN --mount=type=cache,target=/root/.cache/pip install-app ${APP_NAME}
+USER frappe
diff --git a/erpnext/compose.override.yaml b/erpnext/compose.override.yaml
new file mode 100644
index 0000000..54ae679
--- /dev/null
+++ b/erpnext/compose.override.yaml
@@ -0,0 +1,21 @@
+x-erpnext-backend-image: &erpnext_backend_image
+  image: git.jilits.se/jilits/erpnext-worker:${ERPNEXT_VERSION:?No ERPNext version set}
+
+services:
+  configurator:
+    <<: *erpnext_backend_image
+
+  backend:
+    <<: *erpnext_backend_image
+
+  queue-short:
+    <<: *erpnext_backend_image
+
+  queue-default:
+    <<: *erpnext_backend_image
+
+  queue-long:
+    <<: *erpnext_backend_image
+
+  scheduler:
+    <<: *erpnext_backend_image
diff --git a/erpnext/frappe_docker b/erpnext/frappe_docker
new file mode 160000
index 0000000..d85f54c
--- /dev/null
+++ b/erpnext/frappe_docker
@@ -0,0 +1 @@
+Subproject commit d85f54cd7beaf38e4c553ee354bdc4ff3a4d009e
diff --git a/erpnext/main.env b/erpnext/main.env
new file mode 100644
index 0000000..84b44a0
--- /dev/null
+++ b/erpnext/main.env
@@ -0,0 +1,40 @@
+# Reference: https://github.com/frappe/frappe_docker/blob/main/docs/images-and-compose-files.md
+
+FRAPPE_VERSION=v14.19.1
+
+# Only with ERPNext override
+ERPNEXT_VERSION=v14.10.1
+
+DB_PASSWORD=somethingelse
+
+# Only if you use external database
+DB_HOST=
+DB_PORT=
+
+# Only if you use external Redis
+REDIS_CACHE=
+REDIS_QUEUE=
+REDIS_SOCKETIO=
+
+# Only with HTTPS override
+LETSENCRYPT_EMAIL=mail@example.com
+
+# These environment variables are not required.
+
+# Default value is `$$host` which resolves site by host. For example, if your host is `example.com`,
+# site's name should be `example.com`, or if host is `127.0.0.1` (local debugging), it should be `127.0.0.1`.
+# This variable allows to override described behavior. Let's say you create site named `mysite`
+# and do want to access it by `127.0.0.1` host. Than you would set this variable to `mysite`.
+FRAPPE_SITE_NAME_HEADER=erp.jilits.se
+
+# Default value is `127.0.0.1`. Set IP address as our trusted upstream address.
+UPSTREAM_REAL_IP_ADDRESS=
+
+# Default value is `X-Forwarded-For`. Set request header field whose value will be used to replace the client address
+UPSTREAM_REAL_IP_HEADER=
+
+# Allowed values are on|off. Default value is `off`. If recursive search is disabled,
+# the original client address that matches one of the trusted addresses
+# is replaced by the last address sent in the request header field defined by the real_ip_header directive.
+# If recursive search is enabled, the original client address that matches one of the trusted addresses is replaced by the last non-trusted address sent in the request header field.
+UPSTREAM_REAL_IP_RECURSIVE=
diff --git a/erpnext/mk-compose.sh b/erpnext/mk-compose.sh
new file mode 100755
index 0000000..dae88a2
--- /dev/null
+++ b/erpnext/mk-compose.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+#
+# Build Docker Compose configuration
+#
+
+script_dir="$(
+    cd -- "$(dirname "$0")" >/dev/null 2>&1 || exit 1
+    pwd -P
+)"
+cd "$script_dir" || exit 1
+
+cat main.env secret.env >.env || exit 2
+ln -sfn ../.env frappe_docker/.env || exit 3
+. .env || exit 4
+
+cd "$script_dir/frappe_docker" || exit 5
+
+# Generate YAML
+docker compose -p erpnext \
+  -f compose.yaml \
+  -f overrides/compose.erpnext.yaml \
+  -f overrides/compose.mariadb.yaml \
+  -f overrides/compose.redis.yaml \
+  -f overrides/compose.noproxy.yaml \
+  -f ../compose.override.yaml \
+  config >../docker-compose.yml
diff --git a/erpnext/mk-container.sh b/erpnext/mk-container.sh
new file mode 100755
index 0000000..a9d0275
--- /dev/null
+++ b/erpnext/mk-container.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+#
+# Build custom backend container
+#
+
+script_dir="$(
+    cd -- "$(dirname "$0")" >/dev/null 2>&1 || exit 1
+    pwd -P
+)"
+cd "$script_dir" || exit 1
+
+. main.env || exit 2
+
+DOCKER_BUILDKIT=1 docker build . -f backend.Containerfile --build-arg ERPNEXT_VERSION="${ERPNEXT_VERSION:?}" -t "jilits/erpnext-worker:${ERPNEXT_VERSION}" -t "git.jilits.se/jilits/erpnext-worker:${ERPNEXT_VERSION}"