Readme: added Dev notes

Dev_notes.md

@@ -0,0 +1,76 @@
+# Notes to developers
+
+This guide describes how to contribute to this project (and not just this PS Vita HomeBrew) with the least amount of agony.
+
+- [Notes to developers](#notes-to-developers)
+  - [1. Beginning](#1-beginning)
+    - [1.1 Literature](#11-literature)
+    - [1.2 Communities](#12-communities)
+    - [1.3 Tools for development](#13-tools-for-development)
+  - [2. Notes on the development of the VitaOxiPad](#2-notes-on-the-development-of-the-vitaoxipad)
+    - [2.1 General](#21-general)
+    - [2.2 Client (`./client`)](#22-client-client)
+    - [2.3 Server (`./server`)](#23-server-server)
+
+## 1. Beginning
+
+### 1.1 Literature
+
+- [Getting Started with PSVita Homebrew Development](https://gl33ntwine.com/posts/develop-for-vita);
+- [Fixing linking issues with VitaSDK](https://gl33ntwine.com/notes/vita-find-symbol.html);
+- [VitaSDK - Development tools for PS Vita](https://vitasdk.org);
+- [VitaSDK API](https://docs.vitasdk.org)
+- [All about PS Vita hardware](https://www.psdevwiki.com/vita);
+- [HENkaku 変革 project](https://henkaku.xyz);
+- [taiHEN Quick Start](https://github.com/yifanlu/taiHEN/blob/master/USAGE.md);
+- [Using the VitaSDK/DolceSDK with Visual Studio Code](https://forum.devchroma.nl/index.php?topic=139.0).
+
+### 1.2 Communities
+
+- [Vita Nuova](https://discord.com/invite/PyCaBx9) Discord server;
+- [HENkaku](https://discord.com/invite/m7MwpKA) Discord server.
+
+### 1.3 Tools for development
+
+- [Vitadev Package manager](https://github.com/vitasdk/vdpm);
+- [A well-running Vitacompanion fork](https://github.com/devnoname120/vitacompanion);
+- [Python3 vita-parse-core](https://github.com/isage/vita-parse-core) to retrieve information from the PS Vita error dump;
+- Various development tools [PSVita-RE-tools](https://github.com/TeamFAPS/PSVita-RE-tools),
+   including [PrincessLog](https://github.com/TeamFAPS/PSVita-RE-tools?tab=readme-ov-file#princesslog---by-princess-of-sleeping) for debug.
+
+## 2. Notes on the development of the VitaOxiPad
+
+### 2.1 General
+
+- Use automatic code formatting for alignment and indentation (VSCode, Pre-Commit, etc).
+
+### 2.2 Client (`./client`)
+
+**Cheat sheets:**
+
+- Compile and run: `cargo build --release --bin cli && ./target/release/cli $VITA_IP`;
+- Clean cargo packages: `cargo clean`;
+- Upgrade all cargo dependencies: `cargo install cargo-edit` and `cargo upgrade`.
+
+**Notes:**
+
+- To check the data sent to `uinput` it is convenient to use `evtest` with [evtest-qt](https://github.com/Grumbel/evtest-qt).
+
+### 2.3 Server (`./server`)
+
+**Cheat sheets:**
+
+- Generate build folder: `cmake -S server -B build`;
+- Compile: `cmake --build build -j`;
+- Send to PS Vita: `cmake --build build --target send`;
+- Download and parse error dump: `export PARSECOREPATH=/vita-parse-core/main.py` and `cmake --build build --target dump`.
+
+**Notes:**
+
+- If you change the code in a kernel module, update its version.
+   This will help inform users after the update that they should reboot, as the old module may still be in memory;
+- If you modify Cmake instructions, don't be lazy to do a complete cleanup of the project (for the lazy, you can just delete the build folder).
+   This will help you avoid a lot of non-obvious problems;
+- `cmake --build build -j && cmake --build build --target send` a quick way to send changes to the PS Vita.
+   Just don't forget to specify the `VITA_IP` variable before generating build instructions via `cmake -S server -B build`;
+- Keep in mind that `cmake --build build --target send` will only send the module and eboot executable files. The same is true for `PARSECOREPATH`.

README.md

@@ -17,6 +17,7 @@ Based on [VitaPad by Rinnegatamante](https://github.com/Rinnegatamante/VitaPad)
     - [4.1 Windows Client](#41-windows-client)
     - [4.2 Linux Client](#42-linux-client)
   - [5. Client and Server compilation](#5-client-and-server-compilation)
+  - [6. Notes to developers](#6-notes-to-developers)
   - [FAQ](#faq)
     - [Q1: Why Oxi?](#q1-why-oxi)
     - [Q2: Why isn't my PS Vita connecting to the PC?](#q2-why-isnt-my-ps-vita-connecting-to-the-pc)
@@ -179,6 +180,10 @@ or [input-remapper](https://github.com/sezanzeb/input-remapper).
 
 If necessary, you can compile the Client and Server yourself. [Refer to this manual for instructions](./Build.md).
 
+## 6. Notes to developers
+
+If you would like to get involved in the development, please refer to [this guide](./Dev_notes). It can help you.
+
 ## FAQ
 
 ### Q1: Why Oxi?