Future-proof your skills and escape the tech hamster wheel with Linux, Python, vim & git (LPvg) including NixOS, Jupyter, FastHTML and an AI stack to resist obsolescence.

The Necessity of Taking Multiple Small Passes (Chisel-strikes)

This article explores the concept of "chisel-strikes," small, consistent steps towards achieving your goals. It emphasizes balancing focused effort with rest and recovery to avoid burnout and maintain momentum. Discover how to leverage Git for efficient data management and version control, ensuring your files are always backed up and accessible. The article also delves into different approaches to configuring your home directory in Linux and NixOS, including using Nix Home for declarative management and a simpler method of direct file-linking. Learn how to create a portable and reproducible system environment while minimizing reliance on cloud services.

The Reality of Progress

You’re not going to get there right away. It takes multiple passes. Each pass is a little refinement. Only so much can fit in a 24-hour day, and as I learned recently, trying to push yourself significantly beyond that is going to result in a kind of crash with your body rejecting, and a phase of catch-up as your body demands the sleep it needs to function, and maybe a little bit more.

The Cost of Focus

The pendulum swings both ways, and if you somehow find the energy to double-down and focus, finding enough love (or urgency or whatever) in what you do to bear down and give it greater-than-normal amount of work it takes to get done, maybe for consecutive days and maybe at the expense of other things, then you might achieve that goal but there is a toll to pay.

The Long-Term Investment

It can be worth doing, if the accomplishment is of the sort that is forever with you and somehow forever improves your life. Getting over that initial hurdle to learn the vim text editor is a lot like that. Deep startup cost that’s going to take some extra effort up-front, but over time it won’t stop paying off and so was worth doing in the first place. The last article was about banking wins.

Finding Your Rhythm

So we’ve got something like a prescribed rhythm developing here. On occasions in your life when you have to put a herculean effort behind something, it’s okay to clear your calendar and your mind and bear down with that single-minded determination to get it done. But don’t do this too often in your life, because it’s the initial out-of-balance startup cost that your body can’t take you paying too often. Be kind to yourself.

Maintaining Momentum

But then you have to keep tension in the machinery. Letting up for too long will cause a backsliding and loss of forward progress and momentum. Skills fade, so if you’re focusing on a skill that you want to keep and keep sharp, you then enter a phase of daily chisel-strikes. Or multiple chisel-strikes per day, each chisel-strike some sort of no-takebacks banked accomplishment.

The 10,000 Hour Rule

Lather, rinse, repeat, and you might have something. Maybe not. Your entire original premise or belief that this is even the skill you wanted might be wrong, and it probably does take about 10 years or 10,000 hours to master a skill as that… what’s that guideline? Perplexity?

Perplexity: The 10,000-hour rule, popularized by Malcolm Gladwell in his book “Outliers,” suggests that it takes approximately 10,000 hours of practice to achieve mastery in a complex skill[1][2]. This equates to roughly 10 years of dedicated practice, assuming about 20 hours per week[3].

However, it’s important to note several key points about this guideline:

  1. Quality of practice matters: The rule emphasizes deliberate, focused practice under the guidance of an expert or skilled coach, not just any kind of practice[5][7].

  2. It’s an average, not a fixed rule: The actual time required can vary significantly between individuals and fields[7].

  3. It applies to complex skills: Simpler skills may require less time to master[6].

  4. Practice is not the only factor: While important, practice accounts for only about 20-25% of skill variation in various fields[7].

  5. Other factors matter: Age, genetics, and quality of instruction also play significant roles in skill development[7].

Recent research has shown that the 10,000-hour rule is more of a general guideline than a strict rule. The time required to achieve mastery can range from 728 to 16,120 hours, depending on the individual and the field[7].

In essence, while extensive practice is crucial for developing expertise, the “10,000-hour rule” should be viewed as a simplified representation of the dedication and effort required to master a complex skill, rather than a precise formula for success[8].

Citations:

[1] https://www.reddit.com/r/getdisciplined/comments/hklia6/method_if_you_follow_the_10000_hour_rule_life/
[2] https://www.followyourbuyer.com/doc/the-hour-rule-0001
[3] https://amworkshops.com/tips-techniques/learning-1-of-the-10000-hours-rule/
[4] https://www.scotthyoung.com/blog/2024/01/23/10000-hr-rule-myth/
[5] https://www.edsurge.com/news/2020-05-05-researcher-behind-10-000-hour-rule-says-good-teaching-matters-not-just-practice
[6] https://www.reddit.com/r/TechnoProduction/comments/ttetms/thoughts_on_10000_hour_rule/
[7] https://www.6seconds.org/2022/06/20/10000-hour-rule/
[8] https://jamesclear.com/deliberate-practice-strategy

AI Assistance and Search Tools

Nice, the copy-response feature in Perplexity is back. Pshwew! I almost switched to ChatGPT Search there.

Also, interesting the qualifiers it added regarding quality of practice, complexity of skill and other factors where it included age, genetics and instruction quality! Very interesting. It only stands to reason, but is worth noting.

The Dynamic Nature of Expertise

And that’s assuming the very field you’re becoming expert in is static, which is very rarely the case. After 10 years, the field might not even exist in its original form anymore, so there’s a process of continual alignment as you go.

Setting Realistic Goals

There is perhaps some Platonic ideal out there of having done everything just the way you want; the grandiose design and vision achieved. But in most ways in life this just sets you up for disappointment. Lofty goals are allowed, but too lofty and too far off is demoralizing. The goal-levels need to be set lower and closer. We need to bank those wins and use the adrenaline, dopamine or whatever to motivate and drive us onto the next small win.

The Social Contract

Something in the short-term will make you, and hopefully those around you that you need to make happy, happy. You might say that you don’t need to make anyone happy, but that itself is a Platonic idea. We are social animals, each involved in some social contract. We do this and you get that which you need to live. Doing this to get that to live is what you need to do to make somebody else happy. It’s not lessening yourself nor compromising. It’s paying your dues for being in the game of life. If you don’t like the particulars of your situation, then you start arranging your short-term wins to directionally move you towards that longer-term future you want. Still not perfection, but directionally adjusted to something less objectionable.

The NixOS Journey

A lot of the banking small wins lately and the ability to layer up small wins one atop another comes from my recent move to NixOS. I say recent, but it’s been a few months now. It’s been one of the more ballsy tech moves I’ve done lately. We’re on Macs at the office, understandably. But every instinct in my body rejects being on macOS. I am even planning my escape from iOS after all these years. I’ve been on it for my phone with just a few stints here and there because the Samsung Note line was so awesome with its stylus, since 2007. Here we are in 2024 and I’m planning my extraction and escape from the Apple ecosystem.

The Lock-In Dilemma

One of the only regrets really is all the apps and media that get “locked up” in these ecosystems, and thus lock you in; very much by design, and arguably with a better experience than having to manage all the digital media assets you own for the rest of your life, through all the uncertainty and churn life brings. Any particular laptop, server or however else you manage your media may come and go (e.g. crash) but that cloud infrastructure from Apple, Amazon or whatever is still going to be there. It’s not the worst deal in the world.

Finding Balance

The idea then is to strike the right compromise. You don’t want to be completely beholden to these walled garden lock-you-up ecosystems, the pretty prisons as RMS would put it. But also you don’t want to have the entire burden on you to manage your own digital media and have everything you own and hold dear and precious at risk of the next flood or whatever act-of-God data-loss is always happening. So, what’s the happy medium? And how do we get there with little chisel strikes?

The Power of NixOS

Well, under NixOS a humble configuration.nix file is going to reproduce everything except your home stuff. That is, all your programs, apps and whatever else you want to call your software that comes from other people and mostly doesn’t change during the duration of your using it, except for upgrades and adding plugins and such. It’s a static installation for the most part, yet receives so much of the attention. It’s what in the enterprise world is addressed by Docker images, Kubernetes, complex deployment systems like Ansible and a host of other overweight, over-complex stuff. If you’re not using that stuff, then you probably know the process as a bunch of apt, yum or brew commands that you have to run in some order-sensitive fashion to “build” your system. Under NixOS this is all replaced by configuration.nix. And if you’re not on NixOS, then this is all replaced with the nix command from within folders of macOS or Windows (using WSL).

Git and Version Control

So, problem solved on the “environment build” front. Getting all your apps back on any hardware you move to is a breeze. It now flows like water. Your default mode of operation is nomadic, always being on a Noah’s Ark of tech ready for any flood that comes your way. It doesn’t feel that way. It just feels like being on any other Gnome or KDE distro of Linux (a very mainstream Mac/Windows feeling now) once you’re past setup and into just using your apps.

Managing Home Directory

However, the little chisel-strike wins in improving and modifying your system and work environment after that, the forever-forward banked wins, takes place (most often) in your home directory. That is, the location on Linux known as ~/, or in it’s expanded-out form as something like /home/mike/. And in such a location, there is another fateful location usually known as ~/.config/ under which all your per-app customizations are going to reside. Less frequently these days those customizations might also go in /etc/, but for the sake of banking the biggest wins with the lest effort, we’re going to focus on the stuff in your home directory.

Backup Strategies

So we’re basically talking about backing up data files. A lot of times when you switch machines and it’s not a full ecosystem good-experience-guaranteed platforms like Apple, or even it is and you just didn’t do backups, then there’s this “settling back in” feeling that a lot of people myself included enjoy. But I’m suggesting this is one of those giant “reset button” events in tech that sets you back in countless ways.

System Portability

You want to be able to just point a “ghost image” of your preferred computer environment, be it for work or your home machine media server or whatever, and your entire system from apps to data and media files should almost just magically inhabit whatever hardware you point it at. Your entire system from apps to data is your own personal cloud spirit that occupies whatever hardware clothing providence and the state of Moore’s Law make possible.

Benefits of This Approach

In this way, you are uninterrupted. You are protected against data loss. You are protected against walled garden ecosystem lock-in. And you are protected against loss of re-establishing flow-state and getting back to work (or whatever) quickly due to excessive attention having to be paid to “settling back into” the new hardware.

Managing Configuration Files

However, backing up “home” isn’t quite so easy as rebuilding a system’s programs and apps. Programs and apps are just re-fetched from out of whatever repositories, be it Debain, RPM yum repositories, GitHub, Homebrew or wherever. In the case of NixOS, it’s the Nix repository with most of the individual packages fetched from GitHub. All this software has version control which can be “pinned” to whatever version you build your system from (if you want it deterministic), or allowed to use whatever latest versions if you want to throw caution to the wind. But that’s about as complex and risky as it gets. There’s no real opportunity for data loss the way there is with your unique files.

Code and Version Control

So of the types of unique data you may possess, if you’re a developer then you got a code, and there’s gonna be lots of versions of that code. Sooner or later you were going to be directed to in distributed version control system. And probably git in particular. And probably GitHub.com in particular to store those git software repositories Hope you were somewhere offsite, and perchance to collaborate with other people on the code.

Writing and Data Management

Even if you’re not a developer and you do any sort of writing, your face with a similar situation. Let a vendor lock you into their cloud, or if you store it local it’s the worst of both worlds: locked into some proprietary vendor file format, and having your local files at risk of data loss. What could be worse than total catastrophic Microsoft Word file loss from a laptop hard drive crash? It’s hard to imagine. And so most people by now have been coerced into putting all their data on the cloud.

The Power of Text

But what if you were just really good at manipulating text files? What if you did all your fancy formatting with just a simple markup language like Markdown, so that text was enough? In such a world, similar text, editing tools as developers, used for writing code, suddenly become perfectly viable for any writing task, and the methods of doing version control with git are now suddenly open to you. You find yourself in the strongest center of the FOSS (free and open source software) world. There are actual good guys behind you.

The FOSS Philosophy

One of the biggest fallacies of our time that is widely accepted as truth is that if a product is free, you are the product. FALSE! This is not the case for Linux. This is not the case for the writing environments, you can use under Linux such as vim. And not true for the tools you used to keep your writing safe, such as git. There are really tremendous good guys behind you who are not trying to turn you into a product if you go this route.

The True Heroes

Linux Torvalds is behind two of them, Linux and git. The free software foundation, and a host of truly altruistic developer folks are behind the rest. They are not trying to turn you into the product. There is no pop-up advertising. There’s no hidden agenda to upgrade you to the paid subscription plan. It’s just free as in freedom. Free as in Libre. There are giants here upon whose shoulders we stand. We stand on their shoulders and solidarity against the criminal myth that everything must cost.

The Trade-offs

Well, there is a cost. The cost is having to provide a little bit of self support because you’re not gonna have Apple holding your hand and coddling you along. Likewise, we will also not have Microsoft snooping in on every little key stroke you do to be “helpful”. But on the flipside, he will also not have the types of problems that are unique to Apple and Microsoft that keep you having to go to them for support on their own products. You will hit a different set of problems for which Linux is legendary, but also which is getting rapidly fixed through Gnome/KDE polish and NixOS.

Git Repository Management

All right, so you discover git. You discovered that any folder or directory, whatever you wanna call them, can be turned into a git software repository. That is, all your writing versions can magically get instant undos back to the beginning of time— or at least to the time of you turning it into a git repo. So first you get time travel, however, it is still locked on your local machine and subject to the dangers of hard drive crashes.

GitHub and Its Evolution

The next thing you’re gonna discover is that you can easily back up your local git repos to GitHub. You can either make them private or public. The public repos aspect made this website, has its name implies, the hub for much software developer collaboration. In fact, so much so that Microsoft bought it for a cool $8 billion. One of the best deals they ever made. Now they own the heart and soul of the software development community. Everyone keeps their repos on GitHub. Imagine that! Their internal LLMs training on your code. How generous of us. A true case of us being the product. And such a shame, because GitHub started out as such a pillar of FOSS. This strategy is called embrace, extend and eliminate.

Local Alternatives

And so one of the places we have to take precautions against GitHub and our cloud overlords is to have a local alternative to having to push everything to GitHub. I am not talking about the big back up of your home director yet. That will come later. I am simply talking about having a second place that all your git repos go in addition to, or even as a complete alternative to GitHub. All your repose are not belong to them.

Organization is Key

One of the first things you want to make sure you do is keep yourself organized at home. Everything you turned into a git repo, that is every folder or directory in which you type git init should probably be inside a single parent folder in home. I like to use ~/repos/ for when I hope is self-explanatory reasons. It’s where I keep my repos. By putting it in one location, you will never struggle for that whole “where did I put such and such on my machine?” feeling. You just always go to ~/repos/[folder_name], which is a really good feeling. No matter how you switch hardware, this path always is there. Muscle memory for life.

AI and Security

It also has the advantage of putting all your software repositories into the same potential permission context for AI code assists. If anything is truly private, you wanna be careful here. Like if you’re using curse or AI and you make repos you are imported folder, I can read anything in there. So be careful. If you still wanna keep private stuff in there like API keys, there are things like .cursorignore you can set up. But again, this is all even an issue if you’re allowing cloud based LLM’s in as coat assistants. If you are doing this on Linux in general and NixOS in particular, you are pretty secure. Way more so than on one of the super-intrusive vendor OSes.

After you make a new folder in ~/repos/, and after he typed git init to turn it into a git repo, the next thing you’re gonna wanna do is set your… Hmmm. Let’s tap Gemini.

Me: Walk me through the remote origin and point issue here. And also take a look at my configuration.nix and how my local get is set up. Had a paragraph about how you can get hub as your HTTP or SSH protocol based remote origin so that every time you git push it ends up on GitHub and has the security of being offsite. But as an alternative, you can push it locally. You don’t even need to be running any special software like a git server. If you’re origin is set up as a final system location, you can simply push it there. This could be a good choice for private journals.

  # Create directory for local Git repositories
  system.activationScripts.createGitRepoDir = {
    text = ''
      mkdir -p /home/username/git-repos
      chown mike:users /home/username/git-repos
    '';
  };

Tossing this one over to Advanced:

Gemini: Okay, let’s break down the concepts of remote origin and how it applies to your configuration.nix setup, along with considerations for local and remote Git repositories. Understanding remote origin In Git, a remote is a pointer to another copy of your repository, usually hosted somewhere else. The origin remote is the default remote that Git creates when you clone a repository. It’s essentially a shortcut to the URL of the original repository you cloned from.

  • Why is it important? remote origin allows you to synchronize your local repository with a remote one. You can fetch changes from the remote (bringing them into your local repo) and push your local changes to the remote.
  • How do you set it?
    • When you clone an existing repository, the origin is automatically set.
    • If you create a new repository, you can add a remote with: git remote add origin Your configuration.nix and Local Git Setup Your configuration.nix shows you're well-organized! You're using NixOS, a powerful Linux distribution that allows declarative system configuration. Here's how your Git setup looks:
  • programs.git.enable = true;: This enables Git on your system.
  • programs.git.config = { … };: You’re setting your global Git username and email (used for commits) and your preferred text editor (Neovim).
  • system.activationScripts.createGitRepoDir: This script creates a dedicated directory (/home/username/git-repos) to store your local Git repositories. This is a great practice for organization. Local vs. GitHub: Choosing Your remote origin
  • GitHub (HTTP or SSH):
    • Pros: Offsite backups, collaboration features, well-established platform.
    • Cons: Potential privacy concerns (especially with public repos), reliance on GitHub’s services.
    • How to set it: git remote add origin (replace with your actual GitHub repository URL). You can use either the HTTPS or SSH protocol for connecting to GitHub. SSH is generally more secure.
  • Local File System:
    • Pros: Enhanced privacy, no reliance on external services, good for sensitive data like journals.
    • Cons: No inherent collaboration features, requires manual backups to a separate location for true data safety.
    • How to set it: git remote add origin /path/to/your/local/repo (replace with the actual file path). Example: Setting up a local origin for a private journal
  • Create your journal directory: mkdir -p ~/git-repos/private-journal
  • Initialize a Git repository: cd ~/git-repos/private-journal and git init
  • Create your journal entries (as text files or Markdown).
  • Add and commit your changes: git add . and git commit -m “Initial journal entry”
  • Set up your local remote: Choose a location outside of your ~/git-repos directory, for example, /mnt/backup/private-journal. Create that directory if it doesn’t exist.
  • Add the remote: git remote add origin /mnt/backup/private-journal
  • Push your changes: git push -u origin main (or master if that’s your default branch) Important Notes
  • Backups: Even with a local origin, you still need a robust backup strategy for your entire system (including your /mnt/backup drive or wherever you store your local remotes) to protect against hard drive failures or other data loss.
  • Privacy with AI code assistants: If you’re using AI code assistants that have access to your file system, be mindful of sensitive information in your repositories, even with local remotes. Consider using tools like .cursorignore to exclude specific files or directories.
  • Embrace, Extend, Eliminate: Microsoft’s acquisition of GitHub is a classic example of this strategy. While GitHub remains a valuable tool, it’s wise to be aware of the potential long-term implications and consider alternatives where appropriate. Let me know if you have any more questions about setting up your Git remotes or anything else related to your NixOS configuration!

Local Git Strategy

All right, so the strategy puts your files with their complete undo history since their creation and at least a second place on your local system. In this example on the same drive, which doesn’t do much for diversify the location of the files as a precaution against crashing, but it does set the stage. Whenever you do a git commit and push, it at least puts it in a second location which theoretically could be mapped to a different physical drive. But I say why do that when it creates extra moving parts?

Simplified Backup Approach

Why not allow that git push step to always succeed (regardless of what external drives are attached), and then to have a follow up step that synchronizes both your entire repo directory and the git “serverless” server directory? Why not indeed! Your code is now saved in four locations, 2 per physical device. You make the logic that triggers the rsync synchronization robust so that if the external drives not attached, it gracefully fails.

Finding the Right Balance

To some this might seem like not enough. While to others this might seem overkill. To me, it seems like a viable alternative to having everything on GitHub for that even minimal feeling of secure files. This gives you an alternative for things that you do not necessarily want on GitHub, like personal writing or finances. And because of the forever for life nature of NixOS, you are sending the stage for various future passes.

The 80/20 Solution

See, this is the one light-touch pass that gives you a 80/20-rule solution. You can start to extend the concept of different origins for your git repos and different rsync actions to back up specific areas of your home directory or your entire home directory in one go.

Managing Configuration Files

And I will take this article to the one next pass that I have done to ensure that critical files here and there throughout the system. In particular, I want to be able to edit configuration files quickly. These are those aforementioned ~/.config/[app_name] files at practice, lifelong assets, like your text editor macros. You’ve gotta back these up. But they are in these weird locations. Specifically, they are outside the now rigorously and meticulously backed up ~/repos/ location. But we want to manage them exactly like they were in one of these locations.

Streamlined Configuration Management

So now instead of going into the location ~/.config/nvim/init.lua to edit where I keep my nvim macros, I go into ~/respos/nixos/init.lua and edit what looks like, and in fact actually is, the same exact file! It just now lives in 2 places. This time because of entries in my configuration.nix file that look like this:

# System activation scripts
system.activationScripts = {
  # ... other scripts ...

  backupAndLink = {
    text = ''
      # Define variables
      TARGET_FILE="/home/username/.config/nvim/init.lua" 
      BACKUP_DIR="/home/username/repos/nixos"
      FILENAME=$(basename "$TARGET_FILE")
      TARGET_DIR=$(dirname "$TARGET_FILE")
      
      # Backup the existing file, if it exists
      if [ -f "$TARGET_FILE" ]; then
        mv "$TARGET_FILE" "$BACKUP_DIR/$FILENAME"
      fi

      # Ensure the backup directory exists
      mkdir -p "$TARGET_DIR"

      # Create a symbolic link
      ln -sf "$BACKUP_DIR/$FILENAME" "$TARGET_DIR/$FILENAME"
    '';
  };
};

So now, instead of editing my Neovim configuration file (init.lua) in its default location (~/.config/nvim/), I edit it within my ~/repos/nixos directory. This is achieved through a simple script in my configuration.nix file. This script first backs up the original init.lua file to ~/repos/nixos, then creates a symbolic link from the original location to the backed-up file. This way, any changes I make to the file in ~/repos/nixos are reflected in the actual Neovim configuration, and it’s all neatly managed within my version-controlled repository.

Gemini:

Why This Works

This method cleverly leverages the concept of symbolic links (symlinks) within the NixOS environment to centralize and manage configuration files. Here’s the breakdown:

  1. Centralized Management: By placing your configuration files within your ~/repos/nixos directory, you create a single, organized location for managing these files. This simplifies your workflow and makes it easier to track and maintain your system settings.

  2. Version Control Integration: Your ~/repos/nixos directory is likely under version control (e.g., using Git). This allows you to track changes to your configuration files, revert to previous versions if needed, and collaborate with others if you choose to share your configurations.

  3. Simplified Editing: You can edit your configuration files directly within your ~/repos/nixos directory, eliminating the need to navigate to various locations within your file system.

  4. Enhanced Backups: Your backup strategy for ~/repos/ automatically includes your configuration files, ensuring they are protected along with your other important data.

Hard Links vs. Symbolic Links

  • Symbolic Links: These act as pointers or shortcuts to the original file. If you delete the original file, the symbolic link becomes broken.
  • Hard Links: These create an additional directory entry for the same file. Essentially, the file exists in multiple locations with the same inode (a unique identifier for the file on the file system). If you delete one instance of the file, the other remains intact.

Why Hard Links Are Better in NixOS

NixOS uses a read-only file system for most system directories. This means that traditional symbolic links within these directories can be problematic. Hard links, on the other hand, work seamlessly within this read-only environment. They provide the same functionality as symbolic links (allowing you to access the file from multiple locations) while being fully compatible with NixOS’s file system structure.

In essence, hard links offer a more robust and reliable solution for managing configuration files in NixOS. They ensure that your files are accessible from the locations expected by your applications while maintaining the integrity of NixOS’s read-only file system approach.

Me: Excellent, thank you! Now some people have multiple “home” directories and like to manage this a different way, and there is something called Nix Home to address that. But for me, this adds exploding complexity. I like configuration.nix for my overarching system, and then I like flake.nix files for experimentation and environment sharing to people on Macs and Windows. But for keeping my one-and-only digital home safe, I like leaning into the strengths of git and making file-links directly more than adding the overhead of yet another system that seems to add unnecessary (for me) complexity. Make your explanation say all that, plus explain Nix Home a bit, and compare the two approaches.

Gemini: You’re spot on about the potential explosion of complexity when managing multiple “home” directories, and how Nix Home enters the picture. Let’s break down these approaches and compare their strengths and weaknesses.

The Challenge of Multiple “Homes”

Many users, especially those who work across different machines or environments, find themselves with multiple “home” directories. This can lead to inconsistencies, difficulties in maintaining personalized settings, and challenges in keeping files synchronized.

Nix Home: A Declarative Approach

Nix Home offers a declarative way to manage your home environment. Instead of manually configuring settings and files in each home directory, you describe your desired state in a configuration file (usually home.nix). Nix Home then takes care of setting up your environment according to your specifications, ensuring consistency across different machines.

Strengths of Nix Home:

  • Consistency: Guarantees a uniform environment across multiple machines.
  • Reproducibility: Easily recreate your environment on a new machine.
  • Maintainability: Simplifies updates and modifications to your settings.
  • Modularity: Allows you to define reusable modules for different aspects of your environment.

However, as you pointed out, Nix Home can introduce a layer of complexity, especially for users who prefer a more direct and hands-on approach.

Direct File-Linking: A Simpler Alternative

Your approach, leveraging the strengths of Git and direct file-linking, offers a simpler alternative, particularly for those with a single primary “home” directory. By strategically using symbolic links (or hard links in the context of NixOS), you can centralize your configuration files within your version-controlled ~/repos/nixos directory.

Strengths of Direct File-Linking:

  • Simplicity: Easier to understand and implement, especially for users already familiar with Git.
  • Direct Control: Provides more direct control over your files and their locations.
  • Reduced Overhead: Avoids the added complexity of learning and managing another system like Nix Home.
  • Integration with Existing Workflow: Seamlessly integrates with your existing Git-based workflow.

Comparing the Approaches

Feature Nix Home Direct File-Linking
Complexity Higher Lower
Consistency (Multiple Homes) Excellent Not designed for this
Reproducibility Excellent Good (within your primary environment)
Direct Control Less More
Integration with Git Can be integrated Built-in

In Conclusion

Nix Home is a powerful tool for managing complex home environments across multiple machines. However, for users like yourself who primarily work within a single “home” and prefer a simpler, more direct approach, leveraging Git and file-linking can be a highly effective strategy. It allows you to maintain consistency, track changes, and ensure backups while minimizing overhead and complexity.

Your approach of using configuration.nix for system-level configurations, flake.nix for experimentation and sharing, and Git with file-linking for managing your “home” strikes a balance between control, flexibility, and simplicity. It’s a testament to your understanding of the NixOS ecosystem and your ability to tailor it to your specific needs.

Me: Is there a way to make it so that whenever I git push from any repo, a script is triggered off to run a script?

ChatGPT 4o: Yes, you can achieve this by setting up a Git post-push hook. This allows you to execute a script every time you successfully push to a remote repository. Here’s how you can set it up:


Method 1: Local Post-Push Hook

  1. Navigate to Your Local Repository:
    cd /path/to/your/repo
    
  2. Create the post-push Hook: Navigate to the Git hooks directory and create a post-push hook:
    cd .git/hooks
    nano post-push
    
  3. Add Your Script to the Hook: Inside the post-push file, add the following:
    #!/bin/bash
    # Example script to run after a successful git push
    /path/to/your/script.sh
    

    Replace /path/to/your/script.sh with the path to the script you want to execute.

  4. Make the Hook Executable:
    chmod +x post-push
    
  5. Test the Hook: Push to the remote repository, and verify that your script runs after the push.

Method 2: Use a Server-Side Hook

If you have access to the remote repository, you can trigger the script on the server instead.

  1. SSH into the Remote Repository Host:
    ssh user@remote-server
    
  2. Navigate to the Repository on the Server:
    cd /path/to/repo.git
    
  3. Create or Edit the post-receive Hook: Inside the hooks directory, create or edit the post-receive hook:
    nano hooks/post-receive
    
  4. Add Your Script: Add the following to the post-receive file:
    #!/bin/bash
    # Example script to run after a successful push
    /path/to/your/server-script.sh
    
  5. Make the Hook Executable:
    chmod +x hooks/post-receive
    
  6. Test the Hook: Push to the remote repository, and verify that the script runs on the server.

Method 3: Global Hook for All Repositories

If you want the script to run for every git push across multiple repositories on your local machine, set up a global Git hook:

  1. Set Up a Template Directory: Create a global Git template directory:
    mkdir -p ~/.git-templates/hooks
    
  2. Add the post-push Hook: Create the post-push hook in the template directory:
    nano ~/.git-templates/hooks/post-push
    
  3. Add Your Script: Inside the hook file, add:
    #!/bin/bash
    /path/to/your/global-script.sh
    
  4. Make the Hook Executable:
    chmod +x ~/.git-templates/hooks/post-push
    
  5. Configure Git to Use the Template: Tell Git to use the template for new repositories:
    git config --global init.templatedir '~/.git-templates'
    
  6. Apply the Hook to Existing Repositories: Copy the template hooks into an existing repository:
    cp ~/.git-templates/hooks/post-push /path/to/repo/.git/hooks/
    

Additional Notes:

  • Ensure Scripts Are Accessible: Make sure the script you are triggering has the necessary permissions and dependencies available.
  • Error Logging: Redirect errors in the script to a log file for debugging:
    /path/to/your/script.sh >> /path/to/logfile.log 2>&1
    
  • Limitations: Hooks only execute locally (on the developer’s machine) unless you set up a server-side hook.

Let me know if you need help setting this up!


Note to self: When I need a cascading series of events triggered off that ensures banking wins in perpetuity, the best time to do it is on a git push. The very concept of committing and pushing a code improvement semantically represents banking a win. A non-blocking event can also be triggered in the background that tends to the bigger picture of guaranteeing never-loss. I already have some of these scripts in my configuration.nix as writeShellScriptBin, which are… hmmm, what are they called?

ChatGPT 4o: In Nix, writeShellScriptBin is a specialized helper function used to create a shell script and wrap it as an executable binary. If you’re looking for similar functions in Nix, here are some alternatives:


1. writeScriptBin

A generalized version for creating scripts in any language, not just shell scripts.

Example:

let
  myPythonScript = pkgs.writeScriptBin "my-python-tool" ''
    #!/usr/bin/env python3
    print("Hello from Python!")
  '';
in
{
  environment.systemPackages = [ myPythonScript ];
}

2. writeScript

If you just need a script without making it a binary, you can use writeScript.

Example:

let
  myShellScript = pkgs.writeScript "my-script.sh" ''
    #!/bin/bash
    echo "Hello from Bash!"
  '';
in
{
  environment.systemPackages = [ myShellScript ];
}

This will create the script as a derivation but will not wrap it as a binary.


3. runCommand

For more custom scenarios, runCommand allows you to define a derivation where you can execute commands to produce a file.

Example:

let
  myCustomScript = pkgs.runCommand "my-script" { } ''
    echo '#!/bin/bash' > $out
    echo 'echo Hello from a custom script!' >> $out
    chmod +x $out
  '';
in
{
  environment.systemPackages = [ myCustomScript ];
}

4. buildEnv for Composing Scripts

If you want to bundle several scripts or binaries together, buildEnv can create a single environment for them.

Example:

let
  script1 = pkgs.writeShellScriptBin "script1" ''
    echo "This is script 1"
  '';
  script2 = pkgs.writeShellScriptBin "script2" ''
    echo "This is script 2"
  '';
  combinedEnv = pkgs.buildEnv {
    name = "my-scripts";
    paths = [ script1 script2 ];
  };
in
{
  environment.systemPackages = [ combinedEnv ];
}

5. mkDerivation

For full control, you can use mkDerivation to define your custom package.

Example:

let
  myCustomPackage = pkgs.stdenv.mkDerivation {
    name = "my-custom-script";
    buildCommand = ''
      echo '#!/bin/bash' > $out
      echo 'echo Hello from mkDerivation!' >> $out
      chmod +x $out
    '';
  };
in
{
  environment.systemPackages = [ myCustomPackage ];
}

Use Cases

  • writeShellScriptBin: Ideal for quick shell scripts as binaries.
  • writeScriptBin: Works for scripts in other languages.
  • runCommand: Provides flexibility when generating custom outputs.
  • buildEnv: Bundles multiple scripts or tools together.
  • mkDerivation: Gives full control for complex scenarios.

Let me know which one fits your need best!


Yup. These are the different chisels of designing little chisel-strike wins under nix and NixOS. In the past, these would be just issues of settling into a new machine or piece of hardware. But now in the age of carry-forward-forever abstract configurations that apply to any hardware, they are a sort of tech and data management vocabulary and lexicon for life, which greatly compensate for the loss of convenience when severing dependencies from the cloud.

Very soon, I’m going to need a better way to search my own blog to surface these gems when I need them. Future project: Operation Instant Blog Recall! It will be an excellent chapter for the book and a logical part of the blog-to-book distillation process.