HoorThe Hoorbit Blog
Field notes on legacy AS/400 modernization — migration strategy, RPG-to-API integration, cloud roadmaps, and the real cost of standing still.
5 Signs Your AS/400 System Is Overdue for Modernization
The warning signs are rarely dramatic — they show up as workarounds, tribal knowledge, and a growing fear of touching the code. Here's what to watch for.
AS/400 ModernizationRPG to REST: Exposing Legacy AS/400 Logic as Modern APIs
You don't have to rewrite forty years of business logic to make it API-accessible. A practical look at wrapping RPG programs behind REST endpoints.
AS/400 ModernizationA Practical Roadmap for AS/400 to Cloud Migration
Cloud migration for a 30-year-old core system isn't a lift-and-shift weekend project. Here's the phased roadmap that actually works.
AS/400 ModernizationZero-Downtime AS/400 Modernization: Is It Really Possible?
Enterprises can't take order entry offline for a migration weekend. Here's how strangler-pattern modernization keeps the lights on throughout.
AS/400 ModernizationTotal Cost of Ownership: AS/400 Maintenance vs. Modernization
Keeping the AS/400 running "as-is" is never actually free. A breakdown of what legacy maintenance really costs versus a phased modernization.