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Lecture 1: Introduction to Research — [📝Lecture Notebooks] [▶️Video]
Lecture 2: Introduction to Python — [📝Lecture Notebooks] [▶️Video]
Lecture 3: Introduction to NumPy — [📝Lecture Notebooks] [▶️Video]
Lecture 4: Introduction to pandas — [📝Lecture Notebooks] [▶️Video]
Lecture 5: Plotting Data — [📝Lecture Notebooks] [[▶️Vide

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*.tfbackup
.terraform/
*.tfstate
.terraform.tfstate.lock.info

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ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

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Github Action with EC2 using SSH

Check this out on Dev.to

Configure SSH into aws ec2

• How to handle SSH keys with ec2-github actions https://zellwk.com/blog/github-actions-deploy/

Declare these git secrets

• SSH_PRIVATE_KEY
• HOST_NAME / IP_ADDRESS

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.git
.gitignore

# Created by https://www.gitignore.io/api/git,ruby,rails,jetbrains+all
# Edit at https://www.gitignore.io/?templates=git,ruby,rails,jetbrains+all

### Git ###
# Created by git for backups. To disable backups in Git:
# $ git config --global mergetool.keepBackup false
*.orig

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.git
.gitignore

# Created by https://www.gitignore.io/api/git,ruby,rails,jetbrains+all
# Edit at https://www.gitignore.io/?templates=git,ruby,rails,jetbrains+all

### Git ###
# Created by git for backups. To disable backups in Git:
# $ git config --global mergetool.keepBackup false
*.orig

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FROM madnight/docker-alpine-wkhtmltopdf as wkhtmltopdf_savior

# STAGE for bundle & yarn install
FROM ruby:2.4.3-alpine3.7 as builder

ENV CA_CERTS_PATH /etc/ssl/certs/
ENV RAILS_ENV production
ENV RAILS_LOG_TO_STDOUT true
ENV RAILS_SERVE_STATIC_FILES true

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FROM ruby:2.7.1-slim AS base

LABEL maintainer="Yann Defretin <[email protected]"

# Common dependencies
RUN apt-get update -qq \
  && DEBIAN_FRONTEND=noninteractive apt-get install -yq \
    --no-install-recommends \
    build-essential=12.6 \
    gnupg2=2.2.12-1+deb10u1 \

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AWS EC2 Spot Instances for GitHub Self-hosted runners

Below CloudFormation stack which runs GitHub Self-hosted runners on EC2 Spot Instances managed by AutoScalingGroup. It automatically register new instances as self-hosted runners and removes them when Spot is interrupted.

How to use?

1. Download YML below into file
2. Create AWS CloudFormation stack
   • Provide values for parameters

• If you need to install smt in UserData fill stack parameter AdditionalUserData

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enable https on your local environment

install mkcert and create certificates

brew install mkcert

mkcert -install