[Question] Creating FAP from scratch

[unrealsolver]

Hello, I am trying to create a custom FAP using flipperzero-rs crate. I am new to Rust and not sure what I am doing wrong.
I created a new crate with following Cargo.toml

[package]
name = "pms"
version = "0.1.0"
edition = "2021"

[dependencies]
flipperzero = "0.7.2"
flipperzero-rt = "0.7.2"
flipperzero-sys = "0.7.2"

And when I run cargo build --release I get this:

ruslan@nba-153-01a-UZ ~/d/pms (master)> cargo build --release
   Compiling flipperzero-rt v0.7.2
   Compiling flipperzero-sys v0.7.2
   Compiling flipperzero v0.7.2
   Compiling pms v0.1.0 (/home/ruslan/dev/pms)
error: language item required, but not found: `eh_personality`
  |
  = note: this can occur when a binary crate with `#![no_std]` is compiled for a target where `eh_personality` is defined in the standard library
  = help: you may be able to compile for a target that doesn't need `eh_personality`, specify a target with `--target` or in `.cargo/config`

error: could not compile `pms` due to previous error

And if I use this command cargo build --target thumbv7em-none-eabihf I get really long error message which complains for rust-lld: error: undefined symbol: gpio_ext_pc0

How do I should modify Cargo.toml / command to build the app?

[unrealsolver]

Answer: I figured out, that I have to copy crates/.cargo to my project root to build the app.
New questions: Am I doing it right? Should I add it to your README.md?

[dcoles]

Hi @unrealsolver,

That's great to hear! Glad that you got it working. Yes, that's correct. You need .cargo/config.toml in your project to define a few key values including [build] target = target = "thumbv7em-none-eabihf".

We had a bunch of nice example projects, but they were removed from main since we're in the process of moving the examples to their own repository. Though I forgot that this meant that it would no longer be shown on the current main. Oops.

Sorry that it made it unclear how to get started.

[dcoles]

I believe you also need to remove the path = "../../crates/… lines from Cargo.toml.

[dcoles]

There is now a flipperzero-template project to help folks get started.