I built a small offline sheet for quick stand-up time and bolt layout checks underground, keyed to RMR/Q and span, because we kept overrunning the 30-minute unsupported window in a 3.5 m heading. If it helps, I can share the PDF/Excel — includes a simple FoS estimate, suggested 2.4 m resin bolts at 1.5 m centers with 50 mm early-strength shotcrete for RMR 55–65, and a rainfall trigger that flags >25 mm in 24 h.