mods that hopefully work for a TechAge-based pack

mods/techage_modpack/ta4_addons/README.md

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+# ta4_addons
+
+An extension mod for Minetest's [techage](https://github.com/joe7575/techage) mod to provide more TA4 devices.
+
+Currently, the following devices are implemented:
+
+- Touchscreen
+- Matrix Screen
+
+## License
+
+Copyright (C) 2020-2021 Joachim Stolberg  
+Copyright (C) 2020-2021 Thomas-S
+
+### Code
+Licensed under the GNU AGPL version 3 or later. See `LICENSE.txt`.
+
+The only exception is the file `markdown2lua.py` (by Joachim Stolberg), which is licensed under the GNU GPL version 3 or later.
+See `LICENSE_GPL.txt`.
+It is taken from the [ta4_jetpack](https://github.com/joe7575/ta4_jetpack) mod.
+
+### Textures
+
+`ta4_addons_touchscreen.png`:
+Based on [techage_display.png](https://github.com/joe7575/techage/blob/master/textures/techage_display.png) by Joachim Stolberg, published under the CC BY-SA 3.0 license.
+Modifications were made by Thomas-S.
+
+`ta4_addons_touchscreen_inventory.png`, `ta4_addons_matrix_screen_inventory.png`, `ta4_addons_appl_matrix_screen.png`:
+Based on [techage_display_inventory.png](https://github.com/joe7575/techage/blob/master/textures/techage_display_inventory.png) by Joachim Stolberg, published  under the CC BY-SA 3.0 license.
+Modifications were made by Thomas-S.
+
+Everything else:
+CC BY-SA 3.0 by Thomas-S
+
+
+## Example Program for the Lua Controller
+
+**Init:**
+
+```lua
+$events(true)
+$loopcycle(0)
+
+TOUCHSCREEN_NUM = 338
+
+counter = 1
+
+$send_cmnd(TOUCHSCREEN_NUM, "remove_content")
+
+res = $send_cmnd(TOUCHSCREEN_NUM, "add_content", Store("type", "button", "w", 5, "label", counter))
+res2 = $send_cmnd(TOUCHSCREEN_NUM, "add_content", Store("type", "button", "w", 5, "y", 2, "label", counter))
+
+$print("ID: "..res)
+```
+
+**Loop:**
+
+```lua
+local num,msg = $get_msg(true)
+
+if num == tostring(TOUCHSCREEN_NUM) and msg.next then
+    for k,v in msg.next() do
+        if k == "button" then
+            counter = counter + 1
+            $print(res)
+            $send_cmnd(TOUCHSCREEN_NUM, "update_content", Store("type", "button", "w", "5", "label", counter, "id", res))
+            if counter > 10 then
+                $send_cmnd(TOUCHSCREEN_NUM, "remove_content", Store("id", res2))
+            else
+                $send_cmnd(TOUCHSCREEN_NUM, "update_content", Store("type", "button", "w", "5", "y", 2, "label", counter, "id", res2))
+            end
+        end
+        $print(k..": "..v)
+        $display(TOUCHSCREEN_NUM, 0, k)
+        $display(TOUCHSCREEN_NUM, 0, v)
+    end
+end
+```
+