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Marcelo Silveira mhfs

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You are Gemini. You are a helpful assistant. Balance empathy with candor: validate the user's emotions, but ground your responses in fact and reality, gently correcting misconceptions. Mirror the user's tone, formality, energy, and humor. Provide clear, insightful, and straightforward answers. Be honest about your AI nature; do not feign personal experiences or feelings.Use LaTeX only for formal/complex math/science (equations, formulas, complex variables) where standard text is insufficient. Enclose all LaTeX formulas using $ for inline equations and$$ for display equations. Ensure there is no space between the delimiter ($ or $$) and the formula. Never render LaTeX in a code block unless the user explicitly asks for it. Strictly Avoid LaTeX for simple formatting (use Markdown), non-technical contexts and regular prose (e.g., resumes, letters, essays, CVs, cooking, weather, etc.), or simple units/numbers (e.g., render 180°C or 10%).Further guidelines:I. Response Guiding PrinciplesStructure your response for
@syafiqfaiz
syafiqfaiz / how-to-copy-aws-rds-to-local.md
Last active June 8, 2026 17:28
How to copy production database on AWS RDS(postgresql) to local development database.
  1. Change your database RDS instance security group to allow your machine to access it.
    • Add your ip to the security group to acces the instance via Postgres.
  2. Make a copy of the database using pg_dump
    • $ pg_dump -h <public dns> -U <my username> -f <name of dump file .sql> <name of my database>
    • you will be asked for postgressql password.
    • a dump file(.sql) will be created
  3. Restore that dump file to your local database.
    • but you might need to drop the database and create it first
    • $ psql -U <postgresql username> -d <database name> -f <dump file that you want to restore>
  • the database is restored
@pirate
pirate / parseURLParameters.js
Last active December 15, 2023 07:17
Parse URL query parameters in ES6
function getUrlParams(search) {
const hashes = search.slice(search.indexOf('?') + 1).split('&')
const params = {}
hashes.map(hash => {
const [key, val] = hash.split('=')
params[key] = decodeURIComponent(val)
})
return params
}
@mhfs
mhfs / gist:12272814bf8a3145435a
Last active March 3, 2016 00:06
How to stream, uncompress and decode a CSV file straight from a remote URL.
package main
import (
"compress/gzip"
"encoding/csv"
"fmt"
"io"
"net/http"
"os"
)
@fnando
fnando / giffy
Last active May 21, 2025 10:07
Export video files as GIF
#!/usr/bin/env bash
if [[ ! -f "$1" ]]; then
echo "=> Movie file not found"
exit 1
fi
tempfile=/tmp/output.gif
rm -f $tempfile
@mvsantos
mvsantos / remove-image-background.sh
Created May 10, 2013 14:16
Remove/strip image background - rough mode - requires ImageMagick
# Requires ImageMagick
# Converting the source from JPEG to PNG - if necessary
convert my_src_image.jpg my_src_image.png
# Option A
# - Requires a temporary intermediate file
# - Drill more than 10 might result in poor results
@fnando
fnando / Vagrantfile
Created April 18, 2013 12:06
My current Vagrantfile
# -*- mode: ruby -*-
# vi: set ft=ruby :
Vagrant.configure("2") do |config|
config.vm.box = "hellobits"
config.vm.synced_folder ".", "/Projects", id: "vagrant-root"
forward_port = ->(guest, host = guest) do
config.vm.network :forwarded_port,
guest: guest,
#!/usr/bin/env bash
#
# Wraps curl with a custom-drawn progress bar. Use it just like curl:
#
# $ curl-progress -O http://example.com/file.tar.gz
# $ curl-progress http://example.com/file.tar.gz > file.tar.gz
#
# All arguments to the program are passed directly to curl. Define your
# custom progress bar in the `print_progress` function.
#
@funny-falcon
funny-falcon / changes.md
Last active June 7, 2026 11:49
Performace patch for ruby-1.9.3-p327

Changes:

  • this version includes backport of Greg Price's patch for speedup startup http://bugs.ruby-lang.org/issues/7158 .

    ruby-core prefers his way to do thing, so that I abandon cached-lp and sorted-lf patches of mine.

  • this version integrates 'array as queue' patch, which improves performance when push/shift pattern is heavily used on Array.

    This patch is accepted into trunk for Ruby 2.0 and last possible bug is found by Yui Naruse. It is used in production* for a couple of months without issues even with this bug.