Update android.md (#340)

Small mods around Play Store termux and friends not being maintained.

Author: btsimonh

docs/getting-started/android.md

@@ -7,11 +7,13 @@ redirect_from:
   - /docs/platforms/android
 ---
 
-Using the [Termux](https://termux.com) app in the app store makes it easy to run
-Node-RED on Android devices. You can get it from the [Play Store](https://play.google.com/store/apps/details?id=com.termux&hl=en_GB).
+Using the [Termux](https://termux.com) app makes it easy to run
+Node-RED on Android devices. Get it directly from thier [github](https://github.com/termux/termux-app#github) or via [F-Droid](https://f-droid.org/) here [Termux on F-Droid](https://f-droid.org/en/packages/com.termux/).
+
+Note that the Play Store version is not maintained.
 
 <div class="doc-callout"><em>Note</em> : the Node-RED team have no connection
-with the Termux application nor its development. We cannot provide support for
+with the Termux application nor its development, nor F-Droid. We cannot provide support for
 it in any way, other than to say that at this point in time it works.</div>
 
 ### Installing
@@ -26,21 +28,33 @@ Install it, and run it. Then at the prompt type
 
 Then you can point a browser to `http://localhost:1880`
 
+Note that installing openssh may make interacting with termux a little easier.  [see this thread](https://discourse.nodered.org/t/android-termux-playstore-no-longer-a-recommended-install-source/85034/4) for a description of one such install.
+
 ### Notes
 
  - You can also npm install other node-red nodes such as `node-red-dashboard` in the standard way :
 
        cd ~/.node-red
        npm i node-red-dashboard
+   
+   or via the Pallete Manager.
 
  - The `volume-down` key is the ctrl key - so `vol-down-c` can be used to "break" a running app.
  - The instructions above also install the `nano` editor, which is useful for editing files.
 
 ### Autostarting
 
-The recommended way of starting applications running in Termux is using the [Termux:Boot application](https://github.com/termux/termux-boot) (available from [F-droid](https://f-droid.org/en/packages/com.termux.boot/) or [Play Store](https://play.google.com/store/apps/details?id=com.termux.boot)).
+The recommended way of starting applications running in Termux is using the [Termux:Boot application](https://github.com/termux/termux-boot) (available from [F-droid](https://f-droid.org/en/packages/com.termux.boot/) - note that the Play Store version may not be maintained, and it's recommended to use the same source that you installed termux from).
+
+We have found this other app useful for autostarting Termux on boot - <a href="https://play.google.com/store/apps/details?id=com.autostart&amp;hl=en_GB">Autostart - No Root</a> (Note: with termux:boot, use of other autoboot apps does not seem to be required).
 
-We have found this other app useful for autostarting Termux on boot - <a href="https://play.google.com/store/apps/details?id=com.autostart&amp;hl=en_GB">Autostart - No Root</a>
+Note that the shebang in the node-red script is incompatible with termux:boot scripts.  The workaround is to start node-red using a termux:boot startup script like:
+
+```
+#!/data/data/com.termux/files/usr/bin/sh
+termux-wake-lock
+node /data/data/com.termux/files/usr/bin/node-red
+```
 
 ### Device Access
 
@@ -50,7 +64,7 @@ node.
 
 **Note**: you need to install both the add-on app, and also the add-on api in Termux.
 
-Install add-on app - <a href="https://play.google.com/store/apps/details?id=com.termux.api&amp;hl=en">Termux:API</a> from Play store.
+Install add-on app - Termux:API from the same source you got termux.
 
 Install add-on access into Termux
 
@@ -59,3 +73,7 @@ Install add-on access into Termux
 ### Useful links
 
  - [How to use Termux API](https://wiki.termux.com/wiki/Termux:API)
+ - [node-red-contrib-termux-api](https://flows.nodered.org/node/node-red-contrib-termux-api)
+ - [Another Node-Red on termux install guide](https://che-adrian.medium.com/install-node-red-on-an-android-device-using-the-termux-app-1e1679ae876)
+
+