A library to boost confidence when making code changes
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Updated
Mar 27, 2026 - C#
A library to boost confidence when making code changes
Open-source playbook generator for ERP and infrastructure cutovers — go/no-go checkpoints, dependency mapping, rollback triggers
Coordinate Vitess Online DDL across every shard of a keyspace. Submits with --postpone-completion, holds a global cutover barrier until all shards report ready and none is lagging, then completes them together — turning per-shard schema skew into zero. Live progress, throttle guard, revert, resumable journal, and a deterministic cluster simulator.
Reference implementation of zero-downtime SQL Server consolidation using strangler-fig, dual-write, and row-checksum reconciliation. .NET 10, local-first via Docker, Azure-ready.
Check DNS propagation of a record across 18 public resolvers worldwide — parallel queries, consensus detection, watch mode, and CI-friendly exit codes. Python CLI, zero config.
A practical framework for planning and executing cutover activities in high-criticality SAP S/4HANA programs, built from real-world war room experience.
API platform info for migration
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