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todgru /
Created Sep 30, 2020
create a new sd card image for a raspberry pi using a raspberry pi

Create Raspberry Pi Image using a Raspberry Pi

My 2019 Macbook Pro w/Catalina 10.15.6 will not write to micro sd cards with any of the adapters I have available. They appear as "read only". OSX Disk Utility app will not format the SD cards. Error is Couldn't modify partition map. : (-69874)

To get around this, I used a Raspberry Pi to download the image and write it to the micro SD card.

I used a usb micro SD card reader from Canakit I inserted the USB/SD reader after the Pi booted.

For this example, I'm using an Ubuntu image. This will likely work for other Raspberry Pi images.

todgru /
Last active Sep 29, 2020
run simple git server on synology nas
# ./ <repo-name>
cd /volume1/homes/<username>/git-repos
git --bare init "$1".git
cd "$1".git
git update-server-info

Transparent Git Encryption

This document has been modified from its [original format][m1], which was written by Ning Shang ( It has been updated and reformatted into a [Markdown][m2] document by [Woody Gilk][m3] and [republished][m4].


When working with a remote git repository which is hosted on a third-party storage server, data confidentiality sometimes becomes

todgru /
Last active Sep 13, 2020
Setup Namecheap dns for github pages

At Namecheap, in the domains advanced dns settings, add A records and CNAME record. The CNAME will allow the to be redirected to the apex domain,

  • A record, host: @ value:
  • A record, host: @ value:
  • A record, host: @ value:
  • A record, host: @ value:
  • CNAME record, host: www value:

At Github, repo settings, set custom domain to, check "Enforce HTTPS".

todgru / chirp-20200902-oregon-idaho.csv
Last active Sep 2, 2020
20200902 chirp select repeaters for idaho and oregon. Should print this for reference. Name follows the format “RoadTown”. A “x” preface means its a YSF/C4FM/Wires repeater. Towns with many repeaters have extra letters after the road and before the town to help differentiate repeaters. Example “I84bPendleton”. And extra “u”’s indicates a UHF rep…
View chirp-20200902-oregon-idaho.csv
Location Name Frequency Duplex Offset Tone rToneFreq cToneFreq DtcsCode DtcsPolarity Mode TStep Comment
1 146.46 146.46000 0.00000 82.5 88.5 023 NN FM 0 overland
2 146.52 146.52000 0.00000 82.5 88.5 023 NN FM 0 nat calling
3 ID21PILOTPEAK 145.31000 - 0.60000 Tone 100.0 100.0 023 NN FM 5 145.3100 - 0.6 PL 100 VHF KA7ERV
4 ID75GALENA 147.14000 + 0.60000 Tone 100.0 100.0 023 NN FM 5 147.1400 + 0.6 PL 100 VHF AE6DX/R :Coverage from Twin Falls to Cape Horn above Stanley
5 ID75KETCHUM 147.18000 + 0.60000 Tone 100.0 100.0 023 NN FM 5 147.1800 + 0.6 PL 100 VHF N7ACB/R :Coverage from Twin Falls to Cape Horn above Stanley
6 ID55CASCADE 146.62000 - 0.60000 Tone 100.0 100.0 023 NN FM 5 146.6200 - 0.6 PL 100 VHF W7VOI :Net Thur@8pm
7 ID55MCCALL 147.02000 + 0.60000 Tone 100.0 100.0 023 NN FM 5 McCall, No Business Montain
8 XID55MCCALL 146.90000 - 0.60000 Tone 123.0 88.5 023 NN FM 5 146.9000 - 0.6 PL 123.0 Fusion AMS KC7MCC
9 ID55UMCCALL 442.50000 + 5.00000 Tone 100.0 100.0 023 NN FM 5 442.5000 + 5.0 UHF KC7MCC
todgru /
Last active Jun 10, 2020
Pi-star Notes: FCS YSF Wire-x room numbering C4FM reflectors

Pi-Star Notes

General information about rooms

Networks and "rooms"

There are basically three different networks. YSF, FCS, and the Wires-X Network. The Wires-X network is Yaesu's own network and you need their hardware to access it (or a local repeater that's connected to it). YSF and FCS are open.

todgru / get.js
Created May 21, 2020
vanilla javascript version of lodash get
View get.js
* The behaves the same as the lodash version
* Source:
const get = (obj, path, defaultValue = undefined) => {
const travel = regexp =>
.call(path, regexp)
todgru /
Last active May 15, 2020
software guideline principles for a lazy programmer

Principles for lazy programmers

ongoing list that is sure to change.

setting: you can't show someone the light if they don't open their eyes. know when to shutup.

  1. single responsibility
  2. well written code should make tests easy to write
  3. explicit is better than implicit, except when its not
  4. YAGNI (You Aren't Gonna Need It)
todgru / post-receive
Created Apr 28, 2020 — forked from tlrobinson/post-receive
Super simple git post-receive hook for Node.js + nvm + npm + node-foreman + init (Ubuntu) deployment
View post-receive
#!/usr/bin/env bash
set -u
set -e
export GIT_WORK_TREE="/var/www/"
export NODE_VERSION="0.10"
echo "--> Checking out..."
git checkout -f
todgru /
Last active Apr 28, 2020 — forked from noelboss/
Simple automated GIT Deployment using Hooks. Example to copy dist distribution directory.

Simple automated GIT Deployment using GIT Hooks

Here are the simple steps needed to create a deployment from your local GIT repository to a server based on this in-depth tutorial.

How it works

You are developing in a working-copy on your local machine, lets say on the master branch. Most of the time, people would push code to a remote server like or and pull or export it to a production server. Or you use a service like to act upon a Web-Hook that's triggered that service.

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