README: install commands first, sections reorganized

linux/install.sh

@@ -20,7 +20,6 @@ for arg in "$@"; do
     esac
 done
 
-SRC="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 ROOT="${CM_ROOT:-$HOME/.claude-mode}"
 BINDIR="$HOME/.local/bin"
 
@@ -28,6 +27,21 @@ green() { printf '  \033[32mok  \033[0m %s\n' "$*"; }
 warn()  { printf '  \033[33mwarn\033[0m %s\n' "$*"; }
 fail()  { printf '  \033[31mFAIL\033[0m %s\n' "$*"; }
 
+# A checkout next to this script is the normal source. Piped in
+# (curl ... | bash) there is no script file and no checkout, so fetch the
+# repository archive and install from that instead.
+SRC="$(cd "$(dirname "${BASH_SOURCE[0]:-''}")" 2>/dev/null && pwd)" || SRC=""
+if [ ! -f "$SRC/claude-mode" ] || [ ! -f "$SRC/cm-json.py" ]; then
+    REPO_URL="${CM_REPO_URL:-https://git.nebulm.com/smoido/claude-mode}"
+    command -v curl >/dev/null 2>&1 || { fail 'curl required to fetch the source'; exit 1; }
+    TMP="$(mktemp -d "${TMPDIR:-/tmp}/claude-mode-src.XXXXXX")"
+    printf 'no local checkout found - fetching source from %s\n' "$REPO_URL"
+    curl -fsSL "$REPO_URL/archive/master.tar.gz" | tar -xz -C "$TMP"
+    EXTRACTED="$(find "$TMP" -type f -name claude-mode -print -quit)"
+    [ -n "$EXTRACTED" ] || { fail 'archive did not contain linux/claude-mode - repo layout changed?'; exit 1; }
+    SRC="$(dirname "$EXTRACTED")"
+fi
+
 printf '\ninstalling claude-mode -> %s\n' "$ROOT"
 
 # --- preflight -------------------------------------------------------------