commmit

archetypes/default.md

@@ -11,11 +11,3 @@ description:
 draft: true
 ---
 
-
-<!-- 
-* 总是会先写一句话，同步背景和上下文
-* 本文你能学习到什么
-* 评论式写作引用一些大牛说的话
-* 多一些有趣的跳转链接
-* 在文章末尾推荐一些有趣的链接
-* 先写提纲，再写内容 -->

content/post/nix_use_old_version.en.md

@@ -0,0 +1,69 @@
+---
+title: "Nixos use old version software"
+date: 2024-07-08T23:42:39+08:00
+author: "xiantang"
+# lastmod: 
+# tags: []
+# categories: []
+# images:
+#   - ./post/golang/cover.png
+description:
+draft: false
+---
+
+I think this is a common problem for Nixos users, because the latest version of the software may have some problems, but in Nixos channel you can only find the fixed version of the software, so how to use the old version of the software?
+
+
+According to the blog post [How to use old versions of software in NixOS](https://lazamar.github.io/download-specific-package-version-with-nix/), you can use the following method to use the old version of the software:
+
+
+### search for the old version of the software
+
+You now can search old package at `https://lazamar.co.uk/nix-versions/`
+
+For example if you wanna install `hugo` with version `v0.60.0`, you can search `hugo` and find the version you want, which is [here](https://lazamar.co.uk/nix-versions/?package=hugo&version=0.60.0&fullName=hugo-0.60.0&keyName=hugo&revision=ee355d50a38e489e722fcbc7a7e6e45f7c74ce95&channel=nixpkgs-unstable#instructions).
+
+```nix
+
+let
+    pkgs = import (builtins.fetchTarball {
+        url = "https://github.com/NixOS/nixpkgs/archive/ee355d50a38e489e722fcbc7a7e6e45f7c74ce95.tar.gz";
+    }) {};
+
+    myPkg = pkgs.hugo;
+in
+```
+
+
+Put above code in your `configuration.nix` as below:
+
+```nix
+# { modulesPath, config, pkgs, lib, helix, ... }:
+# with lib;
+let
+  pkgs = import (builtins.fetchTarball {
+    url =
+      "https://github.com/NixOS/nixpkgs/archive/ee355d50a38e489e722fcbc7a7e6e45f7c74ce95.tar.gz";
+  }) { };
+
+  hugo = pkgs.hugo;
+in 
+# let unstable = import <unstable> { };
+#
+# in {
+
+```
+
+
+Then refer to the `myPkg` in `environment.systemPackages` of `configuration.nix`:
+
+```nix
+environment.systemPackages = with pkgs; [
+# ...
+  myPkg
+# ...
+];
+```
+
+
+Then run `nixos-rebuild switch` to apply the changes.