Adds documentation for building the drop app client and some troubshooting steps for gnome/wayland users

docs/advanced/building.md

@@ -1,8 +1,10 @@
-# Building Drop server for other platforms
+# Building Drop OSS
+
+## Building Drop server for other platforms
 
 Unfortunately, we don't have the time or resources to build and debug our software for platforms other than x86-64 or arm64. However, we offer this guide as a way to get it running, at your own risk.
 
-## Prerequisites
+### Prerequisites
 
 To compile:
 
@@ -16,7 +18,7 @@ To run:
 
 - Docker
 
-## Building `droplet`
+### Building `droplet`
 
 `droplet` is a high-performance utility package for the Drop server. It's a `napi.rs` module, meaning it's written in Rust and then compiled to an NPM module.
 
@@ -44,7 +46,7 @@ Because we're building this locally, setup the yarn link so we can use this pack
 yarn link
 ```
 
-## Building `drop`
+### Building `drop`
 
 `drop` is the self hosted server. It's a Nuxt 3 project, but depends on the `droplet` package so isn't easily transportable.
 
@@ -77,3 +79,35 @@ To package it into a Docker container, remove the build commands in the provided
 ```shell
 docker build . -t drop
 ```
+
+## Building drop-app (desktop companion app)
+
+To build drop-app, run:
+
+```shell
+git clone https://github.com/Drop-OSS/drop-app.git
+cd drop-app
+git checkout main
+yarn
+yarn tauri dev
+```
+
+If the command is successful, you can find the generated assets in: `src-tauri/target/release/bundle`. You can find the AppImage in the `appimage` folder.
+
+If the `yarn tauri dev` command fails, you can try adding `--verbose` to get the error details.
+
+If you get this type of error:
+
+```
+ERROR: Strip call failed: /tmp/appimage_extracted_5a27dadc81a3abf452534fdbee9c58ee/usr/bin/strip: Drop Desktop Client.AppDir/usr/lib/libSvtAv1Enc.so.3: unknown type [0x13] section `.relr.dyn'
+/tmp/appimage_extracted_5a27dadc81a3abf452534fdbee9c58ee/usr/bin/strip: Unable to recognise the format of the input file `Drop Desktop Client.AppDir/usr/lib/libSvtAv1Enc.so.3'
+```
+
+Then you can run the following:
+
+```shell
+sudo ln -s /usr/lib/libavif.so.16 /usr/lib/libavif.so.15
+NO_STRIP=true yarn tauri build
+```
+
+This is a known issue in [tauri](https://discord.com/channels/1291622805124812871/1375895784024969396/1376015429088313354).