Blog

Cache the data pulls, fragment the reruns, lazy-load the tabs — how to keep a Streamlit dashboard with years of hourly energy prices responsive.

Bound the batch run or it never ends, hand-route the critical nets, and never trust the autorouter with trace width — practical notes from autorouting a dense power PCB.

fetch() is no longer cached, params are promises, and one careless import can de-static a whole route — what changed in Next.js 15 and how to keep pages fast.

Daily energy first, peak power second: usable capacity, depth of discharge, C-rate and inverter losses — the four numbers behind a battery bank that actually works.