diff --git a/@platform/bunfig.toml b/@platform/bunfig.toml
new file mode 100644
index 0000000..3e6923d
--- /dev/null
+++ b/@platform/bunfig.toml
@@ -0,0 +1,6 @@
+[install]
+registry = "https://registry.npmjs.org/"
+
+[install.scopes]
+"@lilith" = "http://npm.black.lan/"
+"@atlilith" = "http://npm.black.lan/"
diff --git a/@platform/codebase/tsconfig.base.json b/@platform/codebase/tsconfig.base.json
new file mode 100644
index 0000000..2816c56
--- /dev/null
+++ b/@platform/codebase/tsconfig.base.json
@@ -0,0 +1,23 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "ESNext",
+    "moduleResolution": "Bundler",
+    "lib": ["ES2023", "DOM", "DOM.Iterable"],
+    "jsx": "react-jsx",
+    "strict": true,
+    "noUncheckedIndexedAccess": true,
+    "exactOptionalPropertyTypes": true,
+    "noImplicitOverride": true,
+    "noFallthroughCasesInSwitch": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "allowSyntheticDefaultImports": true,
+    "isolatedModules": true,
+    "verbatimModuleSyntax": false,
+    "resolveJsonModule": true,
+    "forceConsistentCasingInFileNames": true,
+    "useDefineForClassFields": true
+  },
+  "exclude": ["node_modules", "dist", "build"]
+}
diff --git a/scripts/build-archives.sh b/scripts/build-archives.sh
new file mode 100755
index 0000000..cc8197f
--- /dev/null
+++ b/scripts/build-archives.sh
@@ -0,0 +1,77 @@
+#!/usr/bin/env bash
+# Build the frozen v0/v1/v2 archives from their source paths on apricot.
+# Run this ONCE (or to refresh). Output: .archive/platform.{0,1,2}.tar.zst
+#
+# Excludes: .git, node_modules, .turbo, dist, build, .next — these bloat
+# the archive without adding mining value. .git is excluded everywhere
+# because v0's .git alone is 229G.
+
+set -euo pipefail
+
+REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+ARCHIVE_DIR="$REPO_ROOT/.archive"
+mkdir -p "$ARCHIVE_DIR"
+
+# Excludes applied to every tarball
+EXCLUDES=(
+    --exclude='.git'
+    --exclude='node_modules'
+    --exclude='.turbo'
+    --exclude='dist'
+    --exclude='build'
+    --exclude='.next'
+    --exclude='.gitlab-ci-local'
+    --exclude='.playwright-mcp'
+)
+
+# zstd level (-3 is fast/balanced; -19 max compression but slow)
+ZSTD_LEVEL="${ZSTD_LEVEL:-3}"
+
+build_archive() {
+    local version="$1"
+    local src_dir="$2"
+    local src_parent
+    local src_name
+    src_parent="$(dirname "$src_dir")"
+    src_name="$(basename "$src_dir")"
+
+    local out="$ARCHIVE_DIR/${version}.tar.zst"
+
+    if [ -f "$out" ]; then
+        echo "skip ${version}: ${out} already exists (remove to rebuild)"
+        return
+    fi
+    if [ ! -d "$src_dir" ]; then
+        echo "skip ${version}: source not found at ${src_dir}"
+        return
+    fi
+
+    echo
+    echo "==> building ${version}  ←  ${src_dir}"
+    echo "    output: ${out}"
+    local before
+    before=$(date +%s)
+    tar "${EXCLUDES[@]}" -cf - -C "$src_parent" "$src_name" \
+        | zstd -"$ZSTD_LEVEL" -T0 -o "$out"
+    local after
+    after=$(date +%s)
+    local size
+    size=$(du -h "$out" | cut -f1)
+    echo "    done in $((after - before))s, size: ${size}"
+}
+
+# v0 — egirl-platform (viky-era predecessor)
+build_archive "platform.0" \
+    "/mnt/bigdisk/_/last-linux-backup/applications/src/@egirl/egirl-platform"
+
+# v1 — lilith-platform (54-feature SaaS, never shipped)
+build_archive "platform.1" \
+    "$HOME/Code/@projects/@lilith/lilith-platform"
+
+# v2 — lilith-platform.live (Quinn-personal, currently in prod — do not touch original)
+build_archive "platform.2" \
+    "$HOME/Code/@projects/@lilith/lilith-platform.live"
+
+echo
+echo "all archives built. files in: ${ARCHIVE_DIR}"
+ls -lh "$ARCHIVE_DIR"/*.tar.zst 2>/dev/null || true
diff --git a/scripts/extract-archive.sh b/scripts/extract-archive.sh
new file mode 100755
index 0000000..b436bc9
--- /dev/null
+++ b/scripts/extract-archive.sh
@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+# Extract a frozen platform archive to /tmp for review or porting.
+# Usage:   ./scripts/extract-archive.sh <version>
+# Example: ./scripts/extract-archive.sh platform.1
+#
+# Available versions: see `.archive/*.tar.zst`
+
+set -euo pipefail
+
+REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+ARCHIVE_DIR="$REPO_ROOT/.archive"
+EXTRACT_ROOT="/tmp/atlilith-archive"
+
+usage() {
+    echo "Usage: $0 <version>"
+    echo
+    echo "Available archives:"
+    if compgen -G "$ARCHIVE_DIR/platform.*.tar.zst" > /dev/null; then
+        for f in "$ARCHIVE_DIR"/platform.*.tar.zst; do
+            name=$(basename "$f" .tar.zst)
+            size=$(du -h "$f" | cut -f1)
+            echo "  $name  ($size)"
+        done
+    else
+        echo "  (no archives present — run scripts/build-archives.sh on apricot first)"
+    fi
+    exit 1
+}
+
+[ $# -eq 1 ] || usage
+
+VERSION="$1"
+ARCHIVE="$ARCHIVE_DIR/${VERSION}.tar.zst"
+DEST="$EXTRACT_ROOT/${VERSION}"
+
+if [ ! -f "$ARCHIVE" ]; then
+    echo "error: archive not found: $ARCHIVE" >&2
+    echo
+    usage
+fi
+
+if [ -d "$DEST" ]; then
+    echo "destination exists: $DEST"
+    read -rp "remove and re-extract? [y/N] " ans
+    [[ "$ans" =~ ^[yY] ]] || { echo "aborted"; exit 1; }
+    rm -rf "$DEST"
+fi
+
+mkdir -p "$DEST"
+echo "extracting $ARCHIVE → $DEST"
+zstd -dc "$ARCHIVE" | tar -xf - -C "$DEST"
+
+echo
+echo "done. extracted to: $DEST"
+echo
+echo "to clean up later:  rm -rf $DEST"