wicrum-wicrun

The target audience is people who are familiar with Urbit's architecture, though not necessarily much of its code.

Plunder and Urbit

As some of you already know, i recently left my job as a core dev for the Urbit Foundation to work on a similar system called Plunder. Plunder was created in 2020 by two former Tlon employees, after their proposal for a new version of Nock was rejected. They have since reworked that significantly and built a reference implementation of their own system. You can follow its continued development on its mailing list.

I've known about Plunder for quite some time now, but their recently released demo -- in which the system is used to serve a 70 GB dataset, complete with metadata and searchable -- made me feel the need to explore it again and in greater detail. Doing this with my personal server doesn't feel like a big ask, but there is currentl

hrkrshnn

Upgrade to at least 0.8.4

Using newer compiler versions and the optimizer gives gas optimizations and additional safety checks for free!

The advantages of versions 0.8.* over <0.8.0 are:

• Safemath by default from 0.8.0 (can be more gas efficient than some library based safemath).
• Low level inliner from 0.8.2, leads to cheaper runtime gas. Especially relevant when the contract has small functions. For

rfikki

admin.addPeer("enode://da0c61fe14ba9da1a9835b59d811553d21787448724cfe6412bc17f0b14586df91826d8286b2137342d09a8631df5ea548cf301294b05657c2a90f9c3d526721@143.198.119.44:30303");
admin.addPeer("enode://3e2287c6caf363357efc600611ccb777e6997ef8b749b1f87e94d3a7d2b466bbefba163b0620c88804f18bc70cfbe68538720ac2644fc1c970848488cdca0c7a@143.198.114.251:30303");
admin.addPeer("enode://15ea76b5d30ce9eaabf6a9a8fe5ca0ff032534d296b5b8ca6e00a730d08a4aaa019077c382a6b2d08ebc7cf6f8eb888f5e00e0dd378798e3459a555538654370@157.230.6.79:30303");
admin.addPeer("enode://2e718763172902a8fa4bcdda45f77a5c2688de5230e184d154e4867922b8f6ad23e1016379715cb5f55f6c79060563f93896035e35dfb47361d08599d4908ae8@143.198.118.178:30303");
admin.addPeer("enode://9d45f21eeb37bd5555fac0c4094ae3d4d144d93e2313aeb891bf3054b0dcf6ca817961ed29ea1de00389b5c36dc6bbe9b00443e367b16ed8ba251cea6c242044@94.176.237.140:30303");
admin.addPeer("enode://2493b5b8407ccb1c448d7ad358e838066640f273442730caf80acde2fe98522b1d9dcebd2dc982efe44911a49779888fe72defc181c29596facff05e1

swaldman

Setting up geth as a service under systemd Fedora 27

Prerequisite: dnf install golang

1. Create user geth with useradd
2. As user geth fast sync the blockchain, geth --fast --cache 1024
3. Manually run geth --rpc as user geth and watch to see that the blockchain continues to sync properly
4. Install the geth.service file (also in this gist) in /usr/lib/systemd/system/
5. Make a symlink from /etc/systemd/system/multi-user.target.wants/geth.service to /usr/lib/systemd/system/geth.service
6. systemctl enable geth followed by systemctl start geth

tomconte

const fs = require('fs');
const solc = require('solc');
const Web3 = require('web3');

// Connect to local Ethereum node
const web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));

// Compile the source code
const input = fs.readFileSync('Token.sol');
const output = solc.compile(input.toString(), 1);

hernamesbarbara

Principles of Adult Behavior

1. Be patient. No matter what.
2. Don’t badmouth: Assign responsibility, not blame. Say nothing of another you wouldn’t say to him.
3. Never assume the motives of others are, to them, less noble than yours are to you.
4. Expand your sense of the possible.
5. Don’t trouble yourself with matters you truly cannot change.
6. Expect no more of anyone than you can deliver yourself.
7. Tolerate ambiguity.
8. Laugh at yourself frequently.

RichardBronosky

#! /usr/bin/env python
# -*- coding: utf-8 -*-
"""This module's docstring summary line.

This is a multi-line docstring. Paragraphs are separated with blank lines.
Lines conform to 79-column limit.

Module and packages names should be short, lower_case_with_underscores.
Notice that this in not PEP8-cheatsheet.py

rubencaro

Elixir installation guide

Version numbers should be the ones you want. Here I do it with the last ones available at the moment of writing.

The simplest way to install elixir is using your package manager. Sadly, at the time of writing only Fedora shows the intention to keep its packages up to date. There you can simply sudo dnf install erlang elixir and you are good to go.

Anyway, if you intend to work with several versions of erlang or elixir at the same time, or you are tied to a specific version, you will need to compile it yourself. Then asdf is your best friend.

simonista

" Don't try to be vi compatible
set nocompatible

" Helps force plugins to load correctly when it is turned back on below
filetype off

" TODO: Load plugins here (pathogen or vundle)

" Turn on syntax highlighting
syntax on

dypsilon

Backend Development

• node.js
  • Installation paths: use one of these techniques to install node and npm without having to sudo.
  • Node.js HOWTO: Install Node+NPM as user (not root) under Unix OSes
  • Felix's Node.js Guide
  • Creating a REST API using Node.js, Express, and MongoDB
  • Node Cellar Sample Application with Backbone.js, Twitter Bootstrap, Node.js, Express, and MongoDB
  • JavaScript Event Loop
• Node.js for PHP programmers