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Category: tools

Make a raspberry pi cluster to run the Ethereum blockchain.

Make a raspberry pi cluster to run the Ethereum blockchain.

One of my favorite projects of the last several months was a Raspberry Pi cluster: I've since set it up to run a local geth cluster, which makes running Mist or doing solidity development a little bit easier. Here's a build list: 4 x SanDisk Ultra 32GB microSDHC UHS-I Card with Adapter, Grey/Red, Standard Packaging (SDSQUNC-032G-GN6MA) 4 x Raspberry PI 3 Model B A1.2GHz 64-bit Read the article >>
Install Ethereum / geth on a raspberry pi B

Install Ethereum / geth on a raspberry pi B

To install geth on a raspberry pi, run these commands: wget https://gethstore.blob.core.windows.net/builds/geth-linux-arm7-1.6.6-10a45cb5.tar.gz tar -xvf geth-linux-arm7-1.6.6-10a45cb5.tar.gz cd geth-linux-arm7-1.6.6-10a45cb5 sudo mv geth /usr/local/bin/ Note: the geth binary I've chosen might be out of sync by the time you read this.  Look for arm7 linux builds on https://geth.ethereum.org/downloads/ if Read the article >>
Bridge Mixed Reality Headset

Bridge Mixed Reality Headset

Bridge is the first Mixed Reality Headset to hit the market at less than a $500 price point.  It's also the latest project I contributed to at Occipital.  I'm exceedingly proud of it.  Check out the video below to learn about what Mixed Reality is and how Bridge enables it (video is 4 minutes long): You can learn more at bridge.occipital.com or @ me on twitter.   Read the article >>
Side Project: Photo Workflow Tools

Side Project: Photo Workflow Tools

I started a side project to automate paro automate (or gracefully degrade into just being more efficient) my photography batch post-processing process. One of the first elements of my photography workflow is to select which photos are worth post-process. To do so, I need to select which of my set of photos to promote to a 'best' subset. This is what it looked like before: This is what it Read the article >>
`du` for AWS S3

`du` for AWS S3

I built and open sourced a tool called s3_disk_util last week.  It's meant to help cleanup disk space on your AWS bucket.  Its very similar to the linux command `du`, but for s3. Here's how it works: kevinowocki@local /Users/kevinowocki/Desktop/s3_disk_utils~ % python3 du.py --depth=1 --bucket=BUCKETNAME BUCKETNAME (Cloudwatch bucket size estimate: 22.7GiB) / : 22.7GiB - DIR1/ : 22.6GiB Read the article >>
VR Space Mini Golf

VR Space Mini Golf

Had a VR Hackathon today with some friends who have an HTC Vive.  We built a VR Physics Puzzle Game. It’s pretty incredible what you can do with Unity and SteamVR in a day.

Demo below:

 

Disable Adobe Flash: Disable flash to make your web browser faster

Disable Adobe Flash: Disable flash to make your web browser faster

To disable flash on your web browser, select your browser below: Disable Flash in Chrome Open up Chrome. In the URL bar, type about:plugins and press enter. Navigate to 'Adobe Flash Player' and hit 'Disable'. Disable Flash in Firefox Open up Firefox Go to the Settings Icon in the top right. Click Addons, then click Plugins. Next to any Flash items, click the dropdown Read the article >>
Slack EmojiBot

Slack EmojiBot

Couldn't sleep last night, so I started futzing with an experiment I've been noodling on.  It's called Slack EmojiBot and I built it last night. It's a bot that adds custom emojis your slack team; inline in Slack. 🤔👌 No more putzing around in your web browser. Supports all of the below inline in slack. 👇 Searching google images. 📷 Uploading images to slack's (IMHO hard Read the article >>
Why Open Source a High Frequency Trader?

Why Open Source a High Frequency Trader?

I built a cryptocurrency trading framework in January, and open sourced it as 'pytrader' 2 weeks ago.  Among the wave of interest, there were a handful of cynics: npx writes, on HN: I can't imagine why anyone would actually want to release a profitable trader. Isn't this kind of a tautologically dumb thing to do? .. I just can't see any motivation to make it profitable and then issue a pull Read the article >>