Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.
This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would
| import pycurl | |
| import json | |
| import time | |
| from StringIO import StringIO | |
| i = 0 | |
| bnums = [] | |
| while True : | |
| print(str(i)) |
| #!/bin/bash | |
| #no PATH, no way to accidently run any programs | |
| PATH='' | |
| #useful variables | |
| term_height=0 | |
| term_width=0 | |
| term_scroll_height=0 | |
| status_line_row=0 |
Since Twitter doesn't have an edit button, it's a suitable host for JavaScript modules.
Source tweet: https://twitter.com/rauchg/status/712799807073419264
const leftPad = await requireFromTwitter('712799807073419264');
Lets have an imaginary node core function that throws on invalid input:
function crop(image, x1, y1, x2, y2) {
// throws if x1, y1, x2, y2 out of range for the image.
}We wrote the following classes using this function:
| # Download latest archlinux bootstrap package, see https://www.archlinux.org/download/ | |
| wget 'ftp://ftp.nluug.nl/pub/os/Linux/distr/archlinux/iso/latest/archlinux-bootstrap-*-x86_64.tar.gz' | |
| # Make sure you'll have enough entropy for pacman-key later. | |
| apt-get install haveged | |
| # Install the arch bootstrap image in a tmpfs. | |
| mount -t tmpfs none /mnt | |
| cd /mnt | |
| tar xvf ~/archlinux-bootstrap-*-x86_64.tar.gz --strip-components=1 |
| # Install QEMU OSX port with ARM support | |
| sudo port install qemu +target_arm | |
| export QEMU=$(which qemu-system-arm) | |
| # Dowload kernel and export location | |
| curl -OL \ | |
| https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/kernel-qemu-4.1.7-jessie | |
| export RPI_KERNEL=./kernel-qemu-4.1.7-jessie | |
| # Download filesystem and export location |
| sysctl -w fs.file-max=12000500 | |
| sysctl -w fs.nr_open=20000500 | |
| ulimit -n 4000000 | |
| sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000' | |
| sysctl -w net.ipv4.tcp_rmem='1024 4096 16384' | |
| sysctl -w net.ipv4.tcp_wmem='1024 4096 16384' | |
| sysctl -w net.core.rmem_max=16384 | |
| sysctl -w net.core.wmem_max=16384 | |
| wget http://packages.erlang-solutions.com/erlang-solutions_1.0_all.deb | |
| sudo dpkg -i erlang-solutions_1.0_all.deb |
| # first, get the iso from http://releases.ubuntu.com/ | |
| # make working dir hierarchy in /tmp (you'll need enough ram for this) | |
| sudo mkdir -p /tmp/custom/{_squash,_work,iso,newiso,newlive,project} | |
| sudo mount -o loop ~/Downloads/ubuntu-18.10-desktop-amd64.iso /tmp/custom/iso | |
| sudo mount -t squashfs /tmp/custom/iso/casper/filesystem.squashfs /tmp/custom/_squash | |
| sudo mount -t overlay overlay -onoatime,lowerdir=/tmp/custom/_squash,upperdir=/tmp/custom/project,workdir=/tmp/custom/_work /tmp/custom/newlive | |
| # customize the live fs with systemd-nspawn (a better chroot) | |
| sudo systemd-nspawn --bind-ro=/run/systemd/resolve/resolv.conf:/etc/resolv.conf --setenv=RUNLEVEL=1 -D /tmp/custom/newlive |
| #!/bin/bash | |
| set -x | |
| exec 2>/dev/null | |
| unset HTTPS_PROXY | |
| unset HTTP_PROXY | |
| unset http_proxy | |
| WARNDAYS=14 |
