
CalcFlow - Solar ROI Calculator
Calculate your solar savings in 30 seconds
CalcFlow - Solar ROI Calculator launched on May 23, 2026 with 1 votes.
What it does
Calculate your solar panel ROI with real sun hours data for all 50 states. ✅ Location-specific calculations (not generic averages) ✅ Complete financial breakdown: system size, costs, payback period, 25-year savings ✅ Accounts for federal 30% tax credit ✅ Factors in electricity inflation & panel degradation ✅ See environmental impact (CO2 offset, trees equivalent) Free, instant results, no signup required. Perfect for homeowners considering solar or just curious about the numbers.
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Source: Product Hunt launch ↗
Launched alongside, May 2026
the whole month →

Parallel agents, diff reviewer, and multi-model comparisons
Dev tools · May 2026 · kilo.ai



Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
Life & fun · May 2026 · github.com

🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md
Dev tools · May 2026 · github.com