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{ lastCheck: null, items: [] };\n}\n\nfunction scrapeHomepage(html: string): FeedItem[] {\n const $ = load(html);\n const items = new Map();\n\n for (const element of $(\"a[href]\").toArray()) {\n const anchor = $(element);\n const heading = anchor.find(\"h3\").first();\n if (!heading.length || anchor.find(\"img.Locked\").length) continue;\n\n const href = anchor.attr(\"href\");\n if (!href) continue;\n const url = new URL(href, HOME_URL);\n url.hash = \"\";\n\n if (!INCLUDED_HOSTS.has(url.hostname)) continue;\n if (url.hostname.endsWith(\"andymatuschak.org\") && url.pathname === \"/scrying-pen\") continue;\n\n const title = heading.text().replace(/\\s+/g, \" \").trim();\n const summary = heading.next(\"p\").text().replace(/\\s+/g, \" \").trim();\n if (!title) continue;\n\n const canonicalUrl = url.href;\n items.set(canonicalUrl, {\n title,\n url: canonicalUrl,\n guid: canonicalUrl,\n date: null,\n summary: summary || null,\n });\n }\n\n const result = [...items.values()];\n if (result.length < 25 || result.length > 45) {\n throw new Error(`homepage selection returned unexpected count: ${result.length}`);\n }\n return result;\n}\n\nexport async function refresh(): Promise {\n const items = scrapeHomepage(await fetchText(HOME_URL));\n await blob.setJSON(CACHE_KEY, { lastCheck: new Date().toISOString(), items } satisfies Cache);\n}\n\nexport async function lastChecked(): Promise {\n const value = (await readCache()).lastCheck;\n const parsed = value ? 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Diff · v16