linux instructions

Author: stepansnigirev

README.md

@@ -16,14 +16,14 @@ Currently all the applets are tested on [NXP JCOP3 J3H145 card](https://www.smar
 
 # Toolchain installation
 
-Instructions are for MacOS only at the moment.
-
 JDK8 works. The most recent one doesn't.
 
 Big thanks to https://adoptopenjdk.net/ for all old versions of jdk!
 
 Install deps:
 
+## MacOS
+
 ```sh
 brew tap adoptopenjdk/openjdk
 brew cask install adoptopenjdk/openjdk/adoptopenjdk8
@@ -38,6 +38,19 @@ export PATH="/usr/local/opt/[email protected]/bin:$PATH"
 export JAVA_HOME="/Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home"
 ```
 
+## Linux
+
+```sh
+sudo apt install openjdk-8-jdk
+sudo apt install ant
+```
+
+Install the smartcard service:
+
+```sh
+sudo apt install pcscd
+```
+
 # Tools
 
 - `gp.jar` - a working and easy to use tool for applets management, by [martinpaljak](https://github.com/martinpaljak/GlobalPlatformPro) (LGPL3)
@@ -52,6 +65,8 @@ alias gp="java -jar $PWD/gp.jar"
 
 # How to build
 
+Make sure to clone recursively or run `git submodule update --init --recursive` if you have an error "No usable JavaCard SDK referenced"
+
 Run to compile all applets:
 
 ```sh

tests/README.md

@@ -1,7 +1,10 @@
 # Install requirements
 
-1. You should have [libsecp256k1](https://github.com/bitcoin-core/secp256k1) installed in the system. For now.
-2. Install requirements: `pip3 install -r requirements.txt`
+On Linux you need: `sudo apt install swig libpcsclite-dev`
+
+1. Install requirements: `pip3 install -r requirements.txt`
+2. You should have [libsecp256k1](https://github.com/bitcoin-core/secp256k1) installed in the system. For now.
+
 
 # Running tests