diff --git a/Applications/System/dnscrypt-proxy.md b/Applications/System/dnscrypt-proxy.md
index 77f0cc5..05a1b6a 100644
--- a/Applications/System/dnscrypt-proxy.md
+++ b/Applications/System/dnscrypt-proxy.md
@@ -1,4 +1,4 @@
-# dnscrypt-proxy
+# [dnscrypt-proxy](https://github.com/DNSCrypt/dnscrypt-proxy)
 
 | Distribution | Package          |
 | ------------ | ---------------- |
diff --git a/Applications/System/sysctl.md b/Applications/System/sysctl.md
new file mode 100644
index 0000000..9fb89d7
--- /dev/null
+++ b/Applications/System/sysctl.md
@@ -0,0 +1,7 @@
+# [sysctl](https://wiki.archlinux.org/index.php/sysctl)
+
+Edit `/etc/sysctl.d/99-swappiness.conf`:
+
+```txt
+vm.swappiness=10
+```