From d4fd8d8da466ea3ed5a87cbc7beeac1c2710e228 Mon Sep 17 00:00:00 2001
From: Agentik OS <x@agentik-os.com>
Date: Wed, 3 Jun 2026 10:18:27 +0200
Subject: [PATCH] fix(install): honor CARGO_HOME/RUSTUP_HOME + document
 env-overridable paths

install.sh hardcoded `source "$HOME/.cargo/env"`, ignoring a host-set
CARGO_HOME and forcing the Rust toolchain into ~/.cargo. Make it honor the
standard CARGO_HOME (RUSTUP_HOME is already honored by rustup), and document
that OMEGA_DIR / INSTALL_DIR / OMEGA_SRC / CARGO_HOME / RUSTUP_HOME are all
env-overridable so a host can route install paths (XDG / clean-home setups,
shared multi-user installs) without forking the script.

Behavior is identical when the vars are unset (defaults unchanged), so install
parity (L0) is preserved.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 install.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/install.sh b/install.sh
index 0521fbdd..a6ca490d 100755
--- a/install.sh
+++ b/install.sh
@@ -8,6 +8,10 @@
 set -euo pipefail
 
 OMEGA_VERSION="0.1.0"
+# Install paths are env-overridable so a host can route them (XDG / clean-home setups,
+# shared multi-user installs, etc.) without forking this script. Defaults match the
+# standard single-user layout. Honored vars: OMEGA_DIR, INSTALL_DIR, OMEGA_SRC,
+# plus the standard CARGO_HOME / RUSTUP_HOME for the Rust toolchain.
 OMEGA_DIR="${OMEGA_DIR:-$HOME/.omega}"
 INSTALL_DIR="${INSTALL_DIR:-$HOME/.local/bin}"
 REPO_URL="https://github.com/agentik-os/OmegaOS"
@@ -152,7 +156,7 @@ if ! command -v cargo &>/dev/null; then
     info "Rust not found. Installing via rustup..."
     command -v curl >/dev/null 2>&1 || { err "curl is required to bootstrap Rust but is missing; install curl and re-run."; exit 1; }
     curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
-    source "$HOME/.cargo/env"
+    source "${CARGO_HOME:-$HOME/.cargo}/env"
     ok "Rust installed: $(rustc --version)"
 else
     ok "Rust found: $(rustc --version)"