raiph

Then mathematical neatness became a goal and led to pruning some features from the core of the language.

— John McCarthy, History of Lisp

If you prefer programming languages with a tidy and tiny core, you're in for a treat. This article drills down to the singleton primitive at the heart of Raku's metamodel ("model of a model") of a model of computation ("how units of computations, memories, and communications are organized")¹.

The reason I've written this article

It began with u/faiface's reddit post/thread "I'm impressed with Raku"². One of their sentences in particular stood out for me:

swlaschin

Architecture

• Use Onion architecture

  • Dependencies go inwards. That is, the Core domain doesn't know about outside layers

• Use pipeline model to implement workflows/use-cases/stories

  • Business logic makes decisions
  • IO does storage with minimal logic
  • Keep Business logic and IO separate

• Keep IO at edges

sethwoodworth

Home Infrastructure Part 1: Espressobin v7

I've been running DD-WRT on my router / WAP, a Linksys 1900ACS v2 for a few years. It's a fine router, but I'd been seeing some stability issues with the temperature sensor after setting up HomeAssistant's DD-WRT integration for detecting which devices are currently active on the home network.

I've been reading about single-board computers lately, alternatives to the Raspberry Pi. Back in Highschool I was fascinated by the PC/104 micro computer form-factor. The MIT Media Lab's wearable computer team used PC/104 boards for a few of their wearable computing platforms, and I've been interested in small computers running linux ever since.

The Espressobin is a router SBC with a built-in 3-port switch.

pcgeek86

Get-Command                                               # Retrieves a list of all the commands available to PowerShell
                                                          # (native binaries in $env:PATH + cmdlets / functions from PowerShell modules)
Get-Command -Module Microsoft*                            # Retrieves a list of all the PowerShell commands exported from modules named Microsoft*
Get-Command -Name *item                                   # Retrieves a list of all commands (native binaries + PowerShell commands) ending in "item"

Get-Help                                                  # Get all help topics
Get-Help -Name about_Variables                            # Get help for a specific about_* topic (aka. man page)
Get-Help -Name Get-Command                                # Get help for a specific PowerShell function
Get-Help -Name Get-Command -Parameter Module              # Get help for a specific parameter on a specific command

subfuzion

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

bordoley

module EventLoop

open System
open System.Collections.Concurrent
open System.Threading
open System.Threading.Tasks

type IEventLoop =
    inherit IDisposable