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Welcome to the Crystal Forum
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1
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3302
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December 4, 2018
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5 Years Anniversary of Crystal 1.0
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5
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238
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March 27, 2026
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Looking for Crystal or Ruby job in Sweden/Europe
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1
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92
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March 27, 2026
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Vibe-coding in Crystal
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44
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1213
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March 27, 2026
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How to format the output of a time::span to a string? e.g. "3h24m12s"
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4
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130
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March 26, 2026
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Create an SDK for Temporal.io
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1
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64
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March 26, 2026
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Howdy (an introduction)
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8
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192
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March 25, 2026
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Introduction
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1
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68
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March 25, 2026
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New Preview Environment service for PRs
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0
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54
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March 24, 2026
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Time Object convert to Time::Instant
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3
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66
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March 24, 2026
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Handling typing for optional dependencies
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9
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124
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March 24, 2026
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Big_number — Pure Crystal GMP replacement
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17
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283
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March 23, 2026
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Highlights of past releases
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0
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71
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March 23, 2026
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LLM-friendliness as a metric: porting 20 languages with an LLM
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12
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184
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March 22, 2026
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How to manually free allocated memory (Pointer.malloc)
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3
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404
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March 22, 2026
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[ANN] Crystal MCP - An MCP Server for Crystal Tooling
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3
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206
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March 21, 2026
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[RFC] Surviving the AI PR Flood: The Macro X-Ray & Asymmetric TDD
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17
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326
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March 21, 2026
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What is the name of the method that is the opposite of String#blank? (return bool)
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5
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105
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March 20, 2026
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Crystal multithreading support
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40
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2895
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March 20, 2026
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How to display the shards dependencies tree?
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3
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51
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March 19, 2026
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Comparing programming languages XII: The Native showdown (Spoiler alert, Crystal won)
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2
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121
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March 19, 2026
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Why Isn't Every Sane Developer Obsessed with Crystal?
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39
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739
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March 18, 2026
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Awful experience when add sub-command specified options use OptionParser
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4
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129
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March 18, 2026
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Charconv — pure Crystal iconv replacement
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11
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152
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March 15, 2026
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How to disable ```auto expanding(and select langange) in the forum post?
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2
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47
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March 14, 2026
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Announcing CrymbleUI - a modern, native Crystal GUI framework
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21
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1170
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March 14, 2026
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Crystal in LangArena benchmark
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11
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207
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March 14, 2026
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SSH server + Pastebin app + other things
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4
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330
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March 13, 2026
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How to print the busying scheduler size of ExecutionContext::Parallel?
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1
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74
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March 13, 2026
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RFC 0021: Percent String Array Literal with Interpolation
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2
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89
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March 11, 2026
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