back-end programming [python3, golang, c, c++, rust] python [python, python2, python3, mypy, flake8, numpy, ray] rust [rustc, rustup, cargo, crates.io, docs.rs, botfair] front-end programming [html, javascript, css, vue.js, jquery, websockets] database administration [postgresql, sqlite, sql] webservers [nginx, letsencrypt, tls] version control [git, cgit, gitlab, gitolite, gitea, github] linux devops, sysadmin [arch, ubuntu, debian, fedora, gentoo] virtualization [qemu, libvirt, kvm] containerization [docker, lxc] logging [rsyslog, librelp] networking [wireguard, openvpn, dnsmasq, iptables, netfilter] apis [flask, ajax, rest, json-rpc] amazon web services [aws, ec2, ebs, s3] vps [linode, digitalocean] bitcoin [bitcoin-qt, bitcoin-cli, bitcoind-ncurses, c++ codebase] sports betting [betfair, botfair, apis, modelling, autotraders, football] trading [logging, pricing, data collection]