diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0cf52c7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,64 @@
+# Compiled binaries
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Go binaries  
+bubble
+bubble-*
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool
+*.out
+coverage.out
+
+# Build artifacts
+target/
+dist/
+build/
+
+# IDE files
+.vscode/
+.idea/
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Logs and data
+*.log
+logs/
+
+# Temporary files
+*.tmp
+*.temp
+*~
+*.bak
+
+# Environment files
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# Runtime files
+*.pid
+*.pid.lock
+
+# Coverage and testing
+coverage/
+.pytest_cache/
+
+# Development artifacts
+archived/
+old-docs/
\ No newline at end of file
diff --git a/requirements/2.0.0.md b/requirements/2.0.0.md
new file mode 100644
index 0000000..b7845e5
--- /dev/null
+++ b/requirements/2.0.0.md
@@ -0,0 +1,10 @@
+# BUBBLE — Requirements 2.0.0
+
+Primary: Docs/DX, Backend. Support: Security, PM.
+
+- BUBBLE-REQ-001: Record Decision Bundles with UCXL provenance at CONSENSUS.
+- BUBBLE-INT-002: Ingest Delivery Packet from WHOOSH/SLURP; persist approval lineage.
+- BUBBLE-OBS-003: Expose audit/read API to reconstruct who/what/why/when lineage.
+
+Note: Align packet schema with planning/2.0.0-030 and WHOOSH defaults Rule T.
+