<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>stavros</author><text>I&amp;#x27;m having trouble squaring &amp;quot;the security system was not cheap&amp;quot; with &amp;quot;the $40 the system was going to cost&amp;quot;. How cheap were you looking for a security system to be?</text><parent_chain><item><author>bityard</author><text>A while back, I had the need to remotely monitor a house while it was under renovation. A few friends of mine recommended a particular brand of highly-advertised security system. It was not cheap. As I was setting it up, I found out that most of the features that I wanted required broadband internet. This was not disclosed in ANY of the marketing materials. This house didn&amp;#x27;t have Internet and I wasn&amp;#x27;t going to purchase it because it would have been $60 minimum on top of the $40 or so the security system was going to cost.&lt;p&gt;What I did instead: I bought a Raspberry Pi camera, hooked it up to a RPi Zero 2W that I already had, bought an LTE hotspot and a $5&amp;#x2F;mo prepaid SIM from T-Mobile. On the software side, I used imgcomp (&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;github.com&amp;#x2F;Matthias-Wandel&amp;#x2F;imgcomp&quot;&gt;https:&amp;#x2F;&amp;#x2F;github.com&amp;#x2F;Matthias-Wandel&amp;#x2F;imgcomp&lt;/a&gt;) to take a photo every second and save it to a RAM disk. If the two pictures differed (modulo noise), the Pi would upload the changed picture to a directory on my VPS, which would then trigger a notification to my phone via Gotify containing the link to the picture.&lt;p&gt;It was all very Rube Goldbergian but it worked quite flawlessly for a couple of years.</text></item></parent_chain></comment><story><title>Open Source security camera on Raspberry Pi</title><url>https://github.com/TzuHuanTai/RaspberryPi_WebRTC</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>ptero</author><text>Very cool! This is, IMO, perfectly in the spirit of all tinkerers and hackers, building their own solutions when they need from what they have. There is nothing Rube Goldbergian about this. My 2c.</text><parent_chain><item><author>bityard</author><text>A while back, I had the need to remotely monitor a house while it was under renovation. A few friends of mine recommended a particular brand of highly-advertised security system. It was not cheap. As I was setting it up, I found out that most of the features that I wanted required broadband internet. This was not disclosed in ANY of the marketing materials. This house didn&amp;#x27;t have Internet and I wasn&amp;#x27;t going to purchase it because it would have been $60 minimum on top of the $40 or so the security system was going to cost.&lt;p&gt;What I did instead: I bought a Raspberry Pi camera, hooked it up to a RPi Zero 2W that I already had, bought an LTE hotspot and a $5&amp;#x2F;mo prepaid SIM from T-Mobile. On the software side, I used imgcomp (&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;github.com&amp;#x2F;Matthias-Wandel&amp;#x2F;imgcomp&quot;&gt;https:&amp;#x2F;&amp;#x2F;github.com&amp;#x2F;Matthias-Wandel&amp;#x2F;imgcomp&lt;/a&gt;) to take a photo every second and save it to a RAM disk. If the two pictures differed (modulo noise), the Pi would upload the changed picture to a directory on my VPS, which would then trigger a notification to my phone via Gotify containing the link to the picture.&lt;p&gt;It was all very Rube Goldbergian but it worked quite flawlessly for a couple of years.</text></item></parent_chain></comment><story><title>Open Source security camera on Raspberry Pi</title><url>https://github.com/TzuHuanTai/RaspberryPi_WebRTC</url></story>