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Packet Flow: Journey to Network & Cybersecurity Expertise

Follow the challenges and insights of my journey to becoming a network and cybersecurity engineer, with tips, resources, and personal experiences.

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Tag: ArcGIS

GIS

Why We Use Esri (And No, I’m Not Getting Paid to Say This)

by teodulfo.espero

Look, I’m not here to sell you anything. I’m not sponsored. I don’t get a commission. In fact, if Esri ever sent me a free sticker, I’d frame it out of shock. But here’s the deal: we use Esri. Not because it’s cheap. Not because it’s perfect. But because when you’re running GIS for a public utility, local government, or

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GIS

Shaky Ground and Solid Design: My Take on Mapping Earthquake Risk Across the U.S.

by teodulfo.espero

When I created this earthquake risk map for Assignment 4 of my GIS course, I wasn’t just pushing polygons—I was illustrating potential disaster zones. Using data from heavy hitters like USGS, Esri, and NOAA, I mapped out where the United States literally stands on shaky ground. What’s On the Map? This map, titled “Earthquake Risks in the United States,” visualizes

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GIS

Mapping California’s ICU Beds During COVID-19: A Thematic GIS Tale

by teodulfo.espero

When the world shut down in 2020, most people were panic-buying toilet paper. I, on the other hand, was busy making maps. Not just any maps—quantitative thematic maps that could tell a story more compelling than any infographic ever could. Armed with ArcGIS Online, ArcGIS Pro, and a nerdy love for cartographic detail, I created a visual narrative of California’s

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Learning

I Survived GIST I at Foothill College—And You Should Too

by teodulfo.espero

Let me take you back to the Before Times—specifically December 2019. I was at a Cityworks user conference, not expecting much beyond some coffee, vendor booths, and maybe a few maps. But then it hit me: We could be doing way more with GIS. Like, actually use it to improve operations—not just stare at dashboards. That moment changed everything. I

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