> For the complete documentation index, see [llms.txt](https://stage.twelite.info/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://stage.twelite.info/eng/usage/screens/main_menu/firm_prog/act_build.md).

# Act build & rewrite

`Windows` `macOS` `Linux` `RasPi`

Build and rewrite Act. (Windows/Mac/Linux)

{% hint style="success" %}
Focus on small-scale source code that can be used as a reference for writing Act (Act).
{% endhint %}

![selection screen](/files/j36Cre1NYiCbkTvrRLja)

When this screen is opened, a list of projects is displayed. Select the project you wish to write, and the build - write will be performed. After writing is complete, press `Enter` or `[ B ]` button to reset the TWELITE radio module and go to the Interactive settings mode screen (or Terminal screen, configuration required).

[Build - Write screen](/eng/usage/screens/main_menu/firm_prog/build_screen.md)

If the configuration is set to use VSCode (open a folder with application rewrite>code), do not build, but open the [Build to write BIN file screen](/eng/usage/screens/main_menu/firm_prog/bin.md) under `build/`.

### Folder

The projects to be built are as follows

```
{MWSTAGE installation folder}/MWSTAGE/Act_samples
```

### Operation

| Operation                             | Desc.                                                                                                        |
| ------------------------------------- | ------------------------------------------------------------------------------------------------------------ |
| `[ A ]`                               | Menu selection ↑                                                                                             |
| `[ A ]` long press                    | Exit this screen and return to the previous menu.                                                            |
| `[ B ]`                               | Selection                                                                                                    |
| `[ B ]` long press                    | Open the relevant website (if registered in `000desc.txt` in the project folder) with a standard OS browser. |
| `[ C ]`                               | Menu selection ↓                                                                                             |
| `[ C ]` long press                    | Open a folder (project, related folders). You can set it to open in VS Code in the settings menu.            |
| ESC                                   | Exit this screen and return to the rewriting menu.                                                           |
| mouse click `[ﾍﾙﾌﾟ]`                  | Open the relevant website.                                                                                   |
| mouse click `[ﾌｫﾙﾀﾞ]` (or `[VSCode]`) | Open the relevant folder (with VSCode).                                                                      |
| mouse click `[▽]` or `[△]`            | Go to the next or previous page.                                                                             |