--- title: "Packages" url: https://daily.dev/posts/packages-bwsdlhht2 source_url: https://boldlygo.tech/archive/2024-10-14-packages type: article source: "Boldly Go" published: 2026-05-31T07:49:46.919Z updated: 2026-05-31T09:10:05.997Z tags: ["golang"] reading_time: 4 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Packages **[Boldly Go](https://daily.dev/sources/boldlygo)** · 4 min read · 0 upvotes · 0 comments ## Summary A walkthrough of Go packages as defined in the Go language specification (go1.23). Covers how packages are constructed from source files, the structure of a source file (PackageClause, import declarations, top-level declarations), and what can legally appear before the package clause: GoDoc comments, build constraints/directives, and even shebang lines. Also explains why the spec doesn't strictly require all package files to reside in the same directory, with practical examples like test builds and the Go playground. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#golang](https://daily.dev/tags/golang) [View this post on daily.dev](https://daily.dev/posts/packages-bwsdlhht2)