Update cheatsheets

tldr/flutter

@@ -33,6 +33,10 @@ source: https://github.com/tldr-pages/tldr.git
 
 `flutter build apk --target-platform {{android-arm}},{{android-arm64}}`
 
+- Delete the `build` and `.dart_tool` directories:
+
+`flutter clean`
+
 - Display help about a specific command:
 
 `flutter help {{command}}`

tldr/ncspot

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ncspot
+
+> Cross-platform TUI Spotify client.
+> More information: <https://github.com/hrkfdn/ncspot/blob/main/doc/users.md>.
+
+- Start `ncspot`:
+
+`ncspot`
+
+- Enable logging to the specified file:
+
+`ncspot {{[-d|--debug]}} {{path/to/file}}`
+
+- Display paths to the configuration and cache:
+
+`ncspot info`
+
+- Use a different configuration file (in the directory reported by `ncspot info`; default: `config.toml`):
+
+`ncspot {{[-c|--config]}} {{file_name}}`
+
+- Display a list of keybindings:
+
+`<?>`