OSS: Add Docker quick start and platform-detecting install tabs to in…

content/operate/oss_and_stack/install/install-stack/_index.md

@@ -16,6 +16,152 @@ title: Install Redis Open Source
 weight: 2
 ---
 
+## Quick start with Docker
+
+The fastest way to run Redis is with Docker:
+
+{{< highlight bash >}}
+docker run -d --name redis -p 6379:6379 redis
+{{< /highlight >}}
+
+See the [Docker page]({{< relref "/operate/oss_and_stack/install/install-stack/docker" >}}) for full details, including data persistence, custom configuration, and connecting with `redis-cli`.
+
+---
+
+## Install on your platform
+
+<script>
+(function () {
+  function detectPlatformIndex() {
+    var ua = (navigator.userAgent || '').toLowerCase();
+    var pl = (navigator.platform || '').toLowerCase();
+    if (pl.indexOf('mac') !== -1 || ua.indexOf('mac os') !== -1) return 1;
+    if (pl.indexOf('win') !== -1 || ua.indexOf('windows') !== -1) return 2;
+    return 0;
+  }
+  document.addEventListener('DOMContentLoaded', function () {
+    var idx = detectPlatformIndex();
+    if (idx > 0) {
+      var radio = document.getElementById('install-by-platform-tab-' + idx);
+      if (radio) radio.checked = true;
+    }
+  });
+})();
+</script>
+
+{{< multitabs id="install-by-platform"
+    tab1="Linux"
+    tab2="macOS"
+    tab3="Windows" >}}
+
+#### APT — Ubuntu / Debian
+
+```bash
+sudo apt-get install lsb-release curl gpg
+curl -fsSL https://packages.redis.io/gpg | sudo gpg --dearmor -o /usr/share/keyrings/redis-archive-keyring.gpg
+sudo chmod 644 /usr/share/keyrings/redis-archive-keyring.gpg
+echo "deb [signed-by=/usr/share/keyrings/redis-archive-keyring.gpg] https://packages.redis.io/deb $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/redis.list
+sudo apt-get update
+sudo apt-get install redis
+```
+
+[Full APT installation guide]({{< relref "/operate/oss_and_stack/install/install-stack/apt" >}})
+
+---
+
+#### RPM — Rocky Linux / AlmaLinux
+
+Create `/etc/yum.repos.d/redis.repo` (use `rockylinux9` or `rockylinux8` as appropriate):
+
+```ini
+[Redis]
+name=Redis
+baseurl=http://packages.redis.io/rpm/rockylinux9
+enabled=1
+gpgcheck=1
+```
+
+Then run:
+
+```bash
+curl -fsSL https://packages.redis.io/gpg > /tmp/redis.key
+sudo rpm --import /tmp/redis.key
+sudo yum install redis
+```
+
+[Full RPM installation guide]({{< relref "/operate/oss_and_stack/install/install-stack/rpm" >}})
+
+---
+
+#### Snap — Ubuntu
+
+```bash
+sudo apt update
+sudo apt install redis-tools
+sudo snap install redis
+```
+
+[Full Snap installation guide]({{< relref "/operate/oss_and_stack/install/install-stack/snap" >}})
+
+---
+
+#### Docker
+
+```bash
+docker run -d --name redis -p 6379:6379 redis
+```
+
+[Full Docker installation guide]({{< relref "/operate/oss_and_stack/install/install-stack/docker" >}})
+
+-tab-sep-
+
+#### Homebrew
+
+```bash
+brew tap redis/redis
+brew install --cask redis
+```
+
+Start Redis:
+
+```bash
+redis-server $(brew --prefix)/etc/redis.conf
+```
+
+[Full Homebrew installation guide]({{< relref "/operate/oss_and_stack/install/install-stack/homebrew" >}})
+
+---
+
+#### Docker
+
+```bash
+docker run -d --name redis -p 6379:6379 redis
+```
+
+[Full Docker installation guide]({{< relref "/operate/oss_and_stack/install/install-stack/docker" >}})
+
+-tab-sep-
+
+#### Docker (PowerShell)
+
+Make sure Docker Desktop is installed and configured to run Linux containers, then run in PowerShell:
+
+```powershell
+docker run -d --name redis -p 6379:6379 redis
+```
+
+[Full Windows / Docker guide]({{< relref "/operate/oss_and_stack/install/install-stack/windows" >}})
+
+---
+
+#### Memurai (preview)
+
+A preview of Redis Open Source 8.2 RC1 is available on Windows through [Memurai](https://www.memurai.com/get-memurai), the official Redis partner for Windows compatibility.
+
+{{< /multitabs >}}
+
+---
+
 The latest version of Redis Open Source has been tested on the following platforms:
 
 - Ubuntu 22.04 (Jammy Jellyfish) and 24.04 (Noble Numbat).
@@ -24,8 +170,6 @@ The latest version of Redis Open Source has been tested on the following platfor
 - Debian 12 (Bookworm) and 13 (Trixie).
 - macOS 14 (Sonoma), and 15 (Sequoia).
 
-Follow the links below for installation instructions for your OS and distribution.
-
 While you can install Redis Open Source on any of the platforms listed below, you might also consider using Redis Cloud by creating a [free account](https://redis.com/try-free/?utm_source=redisio&utm_medium=referral&utm_campaign=2023-09-try_free&utm_content=cu-redis_cloud_users).
 
 You can also download [Redis Insight]({{< relref "/operate/redisinsight/install/" >}}), a free developer companion tool with an intuitive GUI and advanced CLI, which you can use alongside Redis Open Source.