diff --git a/home-manager/programs/bash/default.nix b/home-manager/programs/bash/default.nix
index 76023fe34..bb3357fdd 100644
--- a/home-manager/programs/bash/default.nix
+++ b/home-manager/programs/bash/default.nix
@@ -35,6 +35,12 @@
       # Set XDG_RUNTIME_DIR on Linux for consistent socket paths (e.g., zellij)
       if [ "$(uname)" = "Linux" ]; then
           export XDG_RUNTIME_DIR="/run/user/$(id -u)"
+
+          # OpenSSL for cargo builds (rust crates like openssl-sys)
+          export PKG_CONFIG_PATH="${pkgs.openssl.dev}/lib/pkgconfig''${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH}"
+          export OPENSSL_DIR="${pkgs.openssl.dev}"
+          export OPENSSL_LIB_DIR="${pkgs.openssl.out}/lib"
+          export OPENSSL_INCLUDE_DIR="${pkgs.openssl.dev}/include"
       fi
 
       # Go configuration
diff --git a/home-manager/programs/fish/default.nix b/home-manager/programs/fish/default.nix
index 8c56a4558..7831965c1 100644
--- a/home-manager/programs/fish/default.nix
+++ b/home-manager/programs/fish/default.nix
@@ -11,6 +11,12 @@
       # Set XDG_RUNTIME_DIR on Linux for consistent socket paths (e.g., zellij)
       if test (uname) = "Linux"
           set -gx XDG_RUNTIME_DIR /run/user/(id -u)
+
+          # OpenSSL for cargo builds (rust crates like openssl-sys)
+          set -gx PKG_CONFIG_PATH "${pkgs.openssl.dev}/lib/pkgconfig" $PKG_CONFIG_PATH
+          set -gx OPENSSL_DIR "${pkgs.openssl.dev}"
+          set -gx OPENSSL_LIB_DIR "${pkgs.openssl.out}/lib"
+          set -gx OPENSSL_INCLUDE_DIR "${pkgs.openssl.dev}/include"
       end
 
       # Go configuration