initial commit

views/error.pug

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+extends layout
+
+block content
+  h1= message
+  h2= error.status
+  pre #{error.stack}

views/index.pug

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+extends layout
+
+block content
+  h1 PM2.5 [<span id="pm25"></span>] & PM10 [<span id="pm10"></span>]
+  p#lastStatus
+  div(style="width:100%; height:75vh;")
+    canvas#chart

views/layout.pug

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+doctype html
+html
+  head
+    title= title
+    link(rel='stylesheet', href='/stylesheets/style.css')
+    script(src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.4.0/chart.js")
+    script(src="https://cdnjs.cloudflare.com/ajax/libs/chartjs-plugin-annotation/1.0.2/chartjs-plugin-annotation.js")
+  body
+    block content
+    script(src="/javascripts/main.js")