diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
new file mode 100644
index 0000000..9aa66bb
--- /dev/null
+++ b/.github/workflows/update.yml
@@ -0,0 +1,83 @@
+name: Update
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - .github/workflows/update.yml
+      - DOCKERHUB.md
+  workflow_dispatch:
+
+env:
+  SLACK_CHANNEL: ${{ secrets.SLACK_CHANNEL }}
+  SLACK_SIGNING_SECRET: ${{ secrets.SLACK_SIGNING_SECRET }}
+  SLACK_TOKEN: ${{ secrets.SLACK_TOKEN }}
+
+jobs:
+  dockerhub:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out
+        uses: actions/checkout@v4
+      - name: Send Slack notification
+        uses: codedsolar/slack-action@v1
+        if: ${{ github.event_name != 'pull_request' }}
+        id: slack
+        with:
+          fields: |
+            {STATUS}
+            {REF}
+            Short description length: Checking...
+            Description length: Checking...
+          status: in-progress
+      - name: Output additional GitHub context
+        id: github
+        run: |
+          description=$(curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
+            "https://api.github.com/repos/${{ github.repository }}" | \
+            jq -r '.description')
+          echo "description=$description" >> $GITHUB_OUTPUT
+      - name: Output lengths
+        id: lengths
+        run: |
+          description=$(cat ./DOCKERHUB.md | wc -c)
+          short_description=$(echo '${{ steps.github.outputs.description }}' | wc -c)
+
+          echo "description=$description" >> $GITHUB_OUTPUT
+          echo "short-description=$short_description" >> $GITHUB_OUTPUT
+      - name: Check results
+        run: |
+          description_length='${{ steps.lengths.outputs.description }}'
+          short_description='${{ steps.github.outputs.description }}'
+          short_description_length='${{ steps.lengths.outputs.short-description }}'
+
+          echo "Short description: $short_description"
+          echo "Short description length: $short_description_length"
+          echo "Description length: $description_length"
+
+          exit_code=1
+          if [ "$description_length" -gt 0 ] && [ "$description_length" -lt 25000 ] && [ "$short_description_length" -gt 0 ]; then
+            exit_code=0
+          fi
+          exit "$exit_code"
+      - name: Update Docker Hub repository overview
+        uses: peter-evans/dockerhub-description@v3
+        if: ${{ !env.ACT }}
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+          repository: ${{ github.repository_owner }}/ktools
+          short-description: ${{ steps.github.outputs.description }}
+          readme-filepath: ./DOCKERHUB.md
+      - name: Update Slack notification
+        uses: codedsolar/slack-action@v1
+        if: ${{ github.event_name != 'pull_request' && always() }}
+        with:
+          fields: |
+            {STATUS}
+            {REF}
+            Short description length: ${{ steps.lengths.outputs.short-description || 'Skipped' }}
+            Description length: ${{ steps.lengths.outputs.description || 'Skipped' }}
+          status: ${{ job.status }}
+          timestamp: ${{ steps.slack.outputs.slack-timestamp }}
diff --git a/DOCKERHUB.md b/DOCKERHUB.md
new file mode 100644
index 0000000..5de20b7
--- /dev/null
+++ b/DOCKERHUB.md
@@ -0,0 +1,132 @@
+## Supported tags and respective `Dockerfile` links
+
+- [`4.5.1-imagemagick-7.1.1-30-alpine`, `4.5.1`, `alpine`, `latest`](https://github.com/dstmodders/docker-ktools/blob/7ef33349f1b1be037c8f1757171ad82404cca97c/latest/alpine/Dockerfile)
+- [`4.5.1-imagemagick-7.1.1-30-debian`, `debian`](https://github.com/dstmodders/docker-ktools/blob/7ef33349f1b1be037c8f1757171ad82404cca97c/latest/debian/Dockerfile)
+- [`4.5.0-imagemagick-7.1.1-30-alpine`, `4.5.0`, `alpine`](https://github.com/dstmodders/docker-ktools/blob/7ef33349f1b1be037c8f1757171ad82404cca97c/latest/alpine/Dockerfile)
+- [`4.5.0-imagemagick-7.1.1-30-debian`, `debian`](https://github.com/dstmodders/docker-ktools/blob/7ef33349f1b1be037c8f1757171ad82404cca97c/latest/debian/Dockerfile)
+- [`4.5.0-imagemagick-7.1.0-5-alpine`](https://github.com/dstmodders/docker-ktools/blob/ef2d40c3fc2e675ca492371e0e539f13449a1846/latest/alpine/Dockerfile)
+- [`4.5.0-imagemagick-7.1.0-5-debian`](https://github.com/dstmodders/docker-ktools/blob/ef2d40c3fc2e675ca492371e0e539f13449a1846/latest/debian/Dockerfile)
+- [`4.4.1-imagemagick-6.9.13-8-alpine`, `4.4.1`, `alpine`](https://github.com/dstmodders/docker-ktools/blob/7ef33349f1b1be037c8f1757171ad82404cca97c/latest/alpine/Dockerfile)
+- [`4.4.1-imagemagick-6.9.13-8-debian`, `debian`](https://github.com/dstmodders/docker-ktools/blob/7ef33349f1b1be037c8f1757171ad82404cca97c/latest/debian/Dockerfile)
+- [`official-4.4.0-imagemagick-6.9.13-8-alpine`, `official-4.4.0`, `official-alpine`, `official-latest`](https://github.com/dstmodders/docker-ktools/blob/7ef33349f1b1be037c8f1757171ad82404cca97c/official/alpine/Dockerfile)
+- [`official-4.4.0-imagemagick-6.9.13-8-debian`, `official-debian`](https://github.com/dstmodders/docker-ktools/blob/7ef33349f1b1be037c8f1757171ad82404cca97c/official/debian/Dockerfile)
+- [`official-4.3.1-imagemagick-6.9.13-8-alpine`, `official-4.3.1`, `official-alpine`](https://github.com/dstmodders/docker-ktools/blob/7ef33349f1b1be037c8f1757171ad82404cca97c/official/alpine/Dockerfile)
+- [`official-4.3.1-imagemagick-6.9.13-8-debian`, `official-debian`](https://github.com/dstmodders/docker-ktools/blob/7ef33349f1b1be037c8f1757171ad82404cca97c/official/debian/Dockerfile)
+- [`official-4.3.0-imagemagick-6.9.13-8-alpine`, `official-4.3.0`, `official-alpine`](https://github.com/dstmodders/docker-ktools/blob/7ef33349f1b1be037c8f1757171ad82404cca97c/official/alpine/Dockerfile)
+- [`official-4.3.0-imagemagick-6.9.13-8-debian`, `official-debian`](https://github.com/dstmodders/docker-ktools/blob/7ef33349f1b1be037c8f1757171ad82404cca97c/official/debian/Dockerfile)
+
+## Overview
+
+[Docker] images for modding tools of Klei Entertainment's game
+[Don't Starve].
+
+- [Environment variables](#environment-variables)
+- [Usage](#usage)
+- [Build](#build)
+
+## Environment variables
+
+| Name                  | Value                  | Description           |
+| --------------------- | ---------------------- | --------------------- |
+| `DS_KTOOLS_KRANE`     | `/usr/local/bin/krane` | Path to [krane]       |
+| `DS_KTOOLS_KTECH`     | `/usr/local/bin/ktech` | Path to [ktech]       |
+| `DS_KTOOLS_VERSION`   | `4.5.1`                | [ktools] version      |
+| `IMAGEMAGICK_VERSION` | `7.1.1-30`             | [ImageMagick] version |
+
+## Usage
+
+[Fork releases] (recommended):
+
+```shell
+$ docker pull dstmodders/ktools:latest
+# or
+$ docker pull ghcr.io/dstmodders/ktools:latest
+```
+
+Or you can pick one of the [official releases]:
+
+```shell
+$ docker pull dstmodders/ktools:official
+# or
+$ docker pull ghcr.io/dstmodders/ktools:official
+```
+
+See [tags] for a list of all available versions.
+
+#### Shell/Bash (Linux & macOS)
+
+```shell
+$ docker run --rm -v "$(pwd):/data/" dstmodders/ktools ktech --version
+```
+
+#### CMD (Windows)
+
+```cmd
+> docker run --rm -v "%CD%:/data/" dstmodders/ktools ktech --version
+```
+
+#### PowerShell (Windows)
+
+```powershell
+PS:\> docker run --rm -v "${PWD}:/data/" dstmodders/ktools ktech --version
+```
+
+## Build
+
+To build images locally:
+
+```shell
+$ docker build ./latest/alpine/ --tag='dstmodders/ktools:alpine'
+$ docker build ./latest/debian/ --tag='dstmodders/ktools:debian'
+$ docker build ./official/alpine/ --tag='dstmodders/ktools:official-alpine'
+$ docker build ./official/debian/ --tag='dstmodders/ktools:official-debian'
+```
+
+To build images locally using [buildx] to target multiple platforms, ensure that
+your builder is running. If you are using [QEMU] emulation, you may also need to
+enable [qemu-user-static].
+
+In overall, to create your builder and enable [QEMU] emulation:
+
+```shell
+$ docker buildx create --name mybuilder --use --bootstrap
+$ docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+```
+
+Respectively, to build multi-platform images locally:
+
+```shell
+$ docker buildx build ./latest/alpine/ --platform='linux/amd64,linux/386' --tag='dstmodders/ktools:alpine'
+$ docker buildx build ./latest/debian/ --platform='linux/amd64,linux/386' --tag='dstmodders/ktools:debian'
+$ docker buildx build ./official/alpine/ --platform='linux/amd64,linux/386' --tag='dstmodders/ktools:official-alpine'
+$ docker buildx build ./official/debian/ --platform='linux/amd64,linux/386' --tag='dstmodders/ktools:official-debian'
+```
+
+## License
+
+Released under the [MIT License](https://opensource.org/licenses/MIT).
+
+[@nsimplex]: https://github.com/nsimplex
+[alpine size]: https://img.shields.io/docker/image-size/dstmodders/ktools/alpine?label=alpine%20size&logo=docker
+[build]: https://img.shields.io/github/actions/workflow/status/dstmodders/docker-ktools/build.yml?branch=main&label=build&logo=github
+[buildx]: https://github.com/docker/buildx
+[ci]: https://img.shields.io/github/actions/workflow/status/dstmodders/docker-ktools/ci.yml?branch=main&label=ci&logo=github
+[debian size]: https://img.shields.io/docker/image-size/dstmodders/ktools/debian?label=debian%20size&logo=docker
+[docker]: https://www.docker.com/
+[don't starve]: https://www.klei.com/games/dont-starve
+[dstmodders/ktools]: https://github.com/dstmodders/ktools
+[fork releases]: https://github.com/dstmodders/ktools/releases
+[gcc]: https://gcc.gnu.org/
+[imagemagick]: https://imagemagick.org/index.php
+[krane]: https://github.com/nsimplex/ktools#krane
+[ktech]: https://github.com/nsimplex/ktools#ktech
+[ktools]: https://github.com/nsimplex/ktools
+[latest state]: https://github.com/nsimplex/ktools/tree/a1d1362bdb2b9aa9146d7177fbf0e351eab414ba
+[nsimplex/ktools]: https://github.com/nsimplex/ktools
+[official releases]: https://github.com/nsimplex/ktools/releases
+[official]: https://github.com/nsimplex/ktools/releases
+[qemu-user-static]: https://github.com/multiarch/qemu-user-static
+[qemu]: https://www.qemu.org/
+[tags]: https://hub.docker.com/r/dstmodders/ktools/tags
+[v4.4.0]: https://github.com/dstmodders/ktools/releases/tag/4.4.0
+[v4.4.1]: https://github.com/dstmodders/ktools/releases/tag/v4.4.1