OptionsVault
Strong financial website geared to stock and options traders
What it does
OptionsVault is a free web-based options trading toolkit at theoptionsvault.com. We publish Black-Scholes calculators, live Greeks, theta decay visualization, strategy P&L charts, an earnings calendar, stock news, and market tools used by retail options traders across the US and Canada. The site strongly supports those actively researching and placing options trades. We drive traffic through organic search and are growing toward a premium tier with live options chain data and real-time IV Rank.
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Dev tools · May 2026 · kilo.ai


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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
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Dev tools · May 2026 · github.com