diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..13566b8
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/git_toolbox_blame.xml b/.idea/git_toolbox_blame.xml
new file mode 100644
index 0000000..7dc1249
--- /dev/null
+++ b/.idea/git_toolbox_blame.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GitToolBoxBlameSettings">
+    <option name="version" value="2" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..47eeea4
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/public-docs.iml" filepath="$PROJECT_DIR$/.idea/public-docs.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/public-docs.iml b/.idea/public-docs.iml
new file mode 100644
index 0000000..6102194
--- /dev/null
+++ b/.idea/public-docs.iml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="EMPTY_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/src/hacker_challenge/README.md b/src/hacker_challenge/README.md
index bb3e3bc..dbcecc3 100644
--- a/src/hacker_challenge/README.md
+++ b/src/hacker_challenge/README.md
@@ -2,10 +2,20 @@
 
 ---
 
-Hack the wallet 2yKf...Yxpb to unlock the DeTEE prize! Wallet keys are secured inside every node of the Hacker Challenge cluster, which anybody can join! No rules - hack the node, seize the keys, win the prize!
+Hack the wallet 2yKf...Yxpb to unlock the DeTEE prize! Wallet keys are
+secured inside every node of the Hacker Challenge cluster, which anybody
+can join! No rules - hack the node, seize the keys, win the prize!
 
-#### The main rules of the hacker challenge:
+### The main rules of the hacker challenge:
 - Don't ever send to the hacker challenge wallet what you don't want to lose
 - Before joining as a node, make sure your processor meets requirements
 - Otherwise, no restrictions - anybody can participate
 - Also no rules for hacking, you can even use a tank
+
+---
+
+Useful resources:
+- [Docker image of the node](https://hub.docker.com/r/detee/hacker-challenge)
+- [Hacker Challenge repo](https://gitea.detee.cloud/general/hacker-challenge)
+- [DeTEE SGX library](https://gitea.detee.cloud/general/detee-sgx) (dependency)
+- [Occlum DeTEE fork](https://gitea.detee.cloud/general/occlum) (dependency)