The hottest Tools Substack posts right now

And their main takeaways
Category
Top Technology Topics

The One Thing I Use AI For That Actually Makes Me Smarter

The Algorithmic Bridge • 371 implied HN points • 23 Mar 26
đź•ą Technology Tools
  1. Using AI for one focused task can genuinely make you smarter by amplifying your thinking instead of replacing it.
  2. A personal, candid style—more "me" and real—can make a guide feel more useful and practical than typical how‑tos.
  3. There’s a free preview available, and a paid subscription unlocks extra weekly content like news commentary and additional how‑to guides.

The SwiftUI Design System War: Composition vs Progressive Disclosure

Jacob’s Tech Tavern • 1530 implied HN points • 17 Mar 26
🪑 Design Tools
  1. There are two main ways to build a SwiftUI design system: idiomatic view composition and a progressive-disclosure style that centralizes options into simpler initializers.
  2. Progressive disclosure can be pragmatic for large projects because it reduces API surface and makes components easier to use, even though it departs from SwiftUI conventions.
  3. Pick the approach that fits your team and project scale, weighing the trade-offs between idiomatic composition and pragmatic simplicity.

Exeter Update (More Hammers Tomorrow)

The American Peasant • 2275 implied HN points • 10 Oct 24
🪑 Design Tools
  1. Making furniture, like chairs, is a skill that improves with time and practice.
  2. The process of creating Exeter hammers has many steps, and they are still working on refining it.
  3. Even simple tasks in woodworking can have complexities that require experimentation and learning.

A Day in the Life of a Solo-ish Builder

Tech and Tea • 263 implied HN points • 12 Mar 26
đź•ą Technology Tools
  1. My work is a portfolio career with lots of moving parts, so a single day can include client interviews, course work, repo cleanup, and community projects.
  2. Investing time in automation and AI assistants makes repetitive tasks scale but requires upfront setup and careful checks to avoid accidental mistakes.
  3. Collaboration happens across timezones and informal community spaces, so evolving workflows, clear communication, and shared systems (like repos and PRs) make getting things done together possible.

AI & Python #28: The Notebook Used for Data Science and AI Projects

Artificial Corner • 158 implied HN points • 23 Oct 24
đź•ą Technology Tools
  1. Jupyter Notebook is a popular tool for data science that combines live code with visualizations and text. It helps users organize their projects in a single place.
  2. Jupyter Notebook can be improved with extensions, which can add features like code autocompletion and easier cell movement. These tools make coding more efficient and user-friendly.
  3. To install these extensions, you can use specific commands in the command prompt. Once installed, you'll find new options that can help increase your productivity.
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The Problem of the 99%: Why Almost No One Uses AI Well (And How to Solve It)

The Algorithmic Bridge • 498 implied HN points • 03 Mar 26
đź•ą Technology Tools
  1. A tiny minority of users capture most of AI's real productivity gains while almost everyone else uses it superficially. Power users use the platform's high-value "thinking" features roughly seven times more than the median paid user.
  2. AI's benefits are unevenly distributed across people, companies, and regions, creating concentrated pockets of supercharged productivity. Many large organizations and most users still haven't plugged AI into everyday workflows, so the gains remain localized.
  3. The standard adoption playbook fails because people don't know how to integrate AI into their existing work; hype and basic rollout aren't enough. Closing the gap requires teaching practical skills, encouraging practice, and embedding AI into real workflows.

Grumpy Julio plays with CLI coding agents

Blog System/5 • 909 implied HN points • 09 Feb 26
đź•ą Technology Tools
  1. Coding agents can quickly handle boring, repetitive, or unfamiliar tasks and let you prototype or finish things you otherwise wouldn’t do.
  2. Their outputs often include unnecessary or incorrect code, so you need careful prompts and human review to iterate them into production quality.
  3. Agents introduce risks like code bloat, gaming productivity metrics, and added maintenance, so use them as cautious tools rather than full replacements.

The Generalist’s Productivity Stack (2026)

The Generalist • 1220 implied HN points • 22 Jan 26
đź’Ľ Business Tools
  1. An updated, practical productivity stack that collects tools and methods proven useful over the past year.
  2. It includes 26 recommended tools and eight core practices, mixing digital apps with analog gear.
  3. The list emphasizes new, non-repeated recommendations so you get fresh, actionable optimizations rather than rehashes.

Pydantic can do what?

Bite code! • 3669 implied HN points • 22 Nov 25
đź•ą Technology Tools
  1. Pydantic has improved a lot and now includes a system for loading settings from various sources like environment variables and config files. This means it can simplify many parts of your code.
  2. It not only validates data but can also handle command-line arguments, making it easier to manage settings in your programs. You can load settings from dotenv files, environment variables, and now CLI inputs too.
  3. Pydantic has features for keeping secrets safe, allowing you to easily manage sensitive information. You can retrieve secrets from services like AWS and Google Cloud securely, making it much safer to handle tokens and passwords.

Swift Concurrency Kata

Jacob’s Tech Tavern • 3936 implied HN points • 11 Nov 25
đź•ą Technology Tools
  1. Real-world challenges are the best ways to learn Swift Concurrency, not just reading or watching videos.
  2. The training involves a fun murder mystery app where you solve problems using Swift Concurrency skills.
  3. By completing these challenges, you can gain valuable experience and build your intuition for real programming tasks.

How to Run a UX Design Critique

Jakob Nielsen on UX • 75 implied HN points • 12 Mar 26
🪑 Design Tools
  1. Run critiques as a structured, time-boxed process: define roles, set scope and a facilitator, share context at least 24 hours before, and use silent feedback plus a note-taker to keep the meeting focused and psychologically safe.
  2. Make feedback problem-focused and evidence-based. Avoid taste-based comments, solutionizing, and bikeshedding; use formats like “I like / I wish / What if” and synthesize comments with affinity mapping to create clear issues to act on.
  3. Close the loop with prioritization, documentation, and tooling. Score issues with Impact/Effort or RICE, publish action items within 24 hours, and use AI and collaboration tools to help prep, synthesize async feedback, and learn from past crits.

Use multiple models

Democratizing Automation • 657 implied HN points • 11 Jan 26
đź•ą Technology Tools
  1. Different models have different, uneven strengths, so switch between them when one gets stuck instead of relying on a single model. Using multiple models regularly often unblocks hard tasks because each has a high but jagged chance of success.
  2. Paying for top-tier "thinking" or Pro models is worth it now because their extra accuracy and reasoning matter for research and frontier tasks. Open models are far cheaper but currently lag on the hardest problems.
  3. The AI landscape is evolving fast with new agents, multimodal features, and form factors, so invest time and money trying cutting-edge tools. Don’t be loyal to one provider if you want to capture the best capabilities.

What’s up Python ? Rust in CPython, immutable dicts, unpacking in comprehensions...

Bite code! • 1590 implied HN points • 08 Dec 25
đź•ą Technology Tools
  1. A frozendict PEP proposing an immutable mapping type is back and looks likely to be accepted. It mirrors frozenset behavior, supports unpacking, preserves insertion order, and can be hashable when values are immutable.
  2. Unpacking in comprehensions is accepted for Python 3.15, so you can use * and ** inside list, set, dict comprehensions and generator expressions. This makes flattening nested iterables simpler and more idiomatic than chain.from_iterable or nested loops.
  3. A heated discussion about introducing Rust into CPython is underway, with proponents pointing to memory safety and concurrency benefits and suggesting a small, gradual start using Rust-based extensions. Critics raise concerns about platform support, C-API changes, compile times, and the impact on long-time C-focused contributors.

Tidy Together Reboot

Software Design: Tidy First? • 331 implied HN points • 29 Jan 26
đź•ą Technology Tools
  1. Even with a solid outline, projects you expect to finish quickly can take much longer than planned, especially creative work like writing.
  2. External events can overtake your material and make it feel outdated, forcing you to rethink or reboot the work.
  3. Stay ready to adapt and revise your plans when circumstances change instead of sticking rigidly to the original schedule.

How to use ChatGPT in your PM work

Lenny's Newsletter • 5837 implied HN points • 11 Apr 23
đź•ą Technology Tools
  1. Learning to work alongside AI will become necessary for knowledge work.
  2. ChatGPT can be used for tasks like summarizing user feedback and coming up with product name suggestions.
  3. Leveraging ChatGPT can help in strengthening arguments and inspiring roadmap ideas for product management.

What real marketers are building with Claude Code

MKT1 Newsletter • 20 implied HN points • 02 Mar 26
đź•ą Technology Tools
  1. Turn repeatable marketing frameworks and review processes into "skills"—simple, reusable Markdown playbooks that Claude can run, update, and use as the foundation for more advanced automations.
  2. Claude Code and Cowork are already powering real marketer tools—think homepage graders, copy "humanizers," lookalike outbound workflows, and ad-intel agents—by connecting to sources like Google Drive, HubSpot, Clay, and deploying or scheduling runs.
  3. Set yourself up for success: block 2–3 hours for initial setup, create a CLAUDE.md, build foundational skills first (ICP, personas, messaging), use Plan mode before execution, and iterate on real examples rather than hypotheticals.

How I Write Posts

Construction Physics • 21087 implied HN points • 19 Feb 24
🚌 Education Tools
  1. The author's writing process involves mainly two types of posts: explanation-driven and exploratory. They often write to understand complex topics themselves and then share their findings.
  2. Extensive research is a crucial part of the author's writing process. They gather information from a variety of sources like books, dissertations, and online resources.
  3. The author follows a structured approach starting from research, reading, and thinking, then moves on to compressing and structuring content, before finally drafting, editing, and posting their work.

No Viable Upgrade Path

The American Peasant • 2235 implied HN points • 11 Feb 24
🎨 Art & Illustration Tools
  1. Kale's story highlights the importance of having the right tools in woodworking that will last a lifetime without needing upgrades.
  2. Investing in high-quality, durable tools from the start can save time and money in the long run.
  3. Choosing tools based on functionality and quality over aesthetics or price can lead to better long-term satisfaction and efficiency in woodworking.

The Generalist’s Productivity Stack

The Generalist • 5063 implied HN points • 30 Jan 25
đź’Ľ Business Tools
  1. Start your day by choosing three important tasks to focus on. This helps keep your day organized and priorities clear.
  2. Try speaking your emails instead of writing them. It saves time and makes responding easier, especially for tricky messages.
  3. Use tools like Claude to help take notes while you read. It saves you time and keeps your information organized for later use.

When "I Built" Became "I Ordered"

decodebytes • 87 implied HN points • 19 Jan 26
đź•ą Technology Tools
  1. Saying "I built" used to mean someone had done the hard, iterative work and gained deep understanding.
  2. Today "I built" often just means you described what you wanted and AI produced it, so the person may lack scar tissue or real intuition about how it works.
  3. That shift reduces the credibility and meaning of claiming to have built something and makes genuine craftsmanship harder to recognize amid mass-produced outputs.

Under the microscope: Kinetica (PlayStation 2)

Rings of Saturn • 43 implied HN points • 13 Feb 26
đź•ą Technology Tools
  1. The game encodes button sequences into an accumulator: L3 clears it and other buttons shift the value by 3 bits then OR in a small button code.
  2. Entering L3, Right, L1, Down, R1, Left on the title screen sets the accumulator to the unlock value and reveals all seasons, bonus characters, tracks, and the history movie.
  3. The same cheat-input system appears in other Sony games like God of War, and there’s a separate hidden sequence (Down, Start, Left, L1) that sets a different value likely meant to show biker coordinates but has no visible effect.

The Sequence Opinion #806: The Emergence of the Agent-as-a-Judge: Why Evals Need a Reasoning Engine

TheSequence • 49 implied HN points • 12 Feb 26
đź•ą Technology Tools
  1. Evaluation moved from informal "vibe checks" to using stronger LLMs to automatically grade weaker models' outputs.
  2. That single-pass LLM-as-judge approach powered benchmarks like MT-Bench and Chatbot Arena, but simple intuitive judgments are becoming insufficient.
  3. The field is shifting to agent-as-a-judge, where evaluations need multi-step reasoning engines and dynamic, agentic judging instead of static benchmarks.

It's a Great Time to be a Software Engineer

Bit Byte Bit • 130 implied HN points • 07 Jan 26
đź•ą Technology Tools
  1. Embrace AI as a core tool — it makes you a faster, more effective engineer and not using it will leave you behind.
  2. Shift your focus from typing code to higher-level software and product decisions like architecture, design principles, and trade-offs, because human judgment matters more than implementation now.
  3. Invest in better workflows: manage context and memory, use multi-agent tools for reviews and refactoring, keep tests and documentation current, and choose models by cost and complexity.

What's up Python? Unpacking in Comprehensions, Android Wheels, and uv is a big boy now...

Bite code! • 856 implied HN points • 01 Aug 25
đź•ą Technology Tools
  1. PEP 798 aims to introduce unpacking in comprehensions, making it easier to combine elements from different iterables in Python.
  2. cibuildwheel has added support for building Python packages on Android, making it more versatile for app development.
  3. The uv tool now installs Python versions directly into the system PATH and registers them with the Windows Registry, making it a strong alternative for managing Python installations.

Softcore Debugging

Jacob’s Tech Tavern • 2405 implied HN points • 21 Jan 25
đź•ą Technology Tools
  1. Xcode has many built-in debugging tools that can help developers troubleshoot their apps. It's helpful to explore these tools to find new ways to fix issues.
  2. Conditional breakpoints can make debugging more efficient by allowing developers to stop the app under specific conditions. This saves time during the debugging process.
  3. Learning faster LLDB commands and memory graph traversal techniques can enhance a developer's ability to diagnose issues quickly. Familiarizing yourself with these options can improve coding skills.

How I use AI for writing (part 1)

Technically • 25 implied HN points • 19 Feb 26
đź•ą Technology Tools
  1. Writing is central to a writer's identity and career, and the real skill is picking the right topics and structuring ideas rather than obsessing over individual word choices.
  2. Early AI felt wrong to many writers because its output was low-quality and it was trained on other people's work without consent, creating ethical and 'vibe' concerns.
  3. AI can be a useful tool for scaffolding — outlining, prompting, and following style guides — but you shouldn't outsource your creative process or your voice; for personal pieces it's often better to write them yourself.

Slashing my ".bashrc" in half

Bite code! • 1834 implied HN points • 20 Feb 25
đź•ą Technology Tools
  1. Using new tools like Atuin and Starship can make your terminal experience much simpler and faster. They help reduce the size of configuration files like .bashrc while still providing great features.
  2. The rise of Rust has led to better command-line tools that are efficient and user-friendly. These tools replace many old commands and plugins with minimal effort needed from users.
  3. It's okay to stop using some tools or plugins if they aren't effective for your needs. Keeping your setup clean and understandable is more important than having every possible feature.

Manufacturing Epistemic Density

Abstraction • 24 implied HN points • 16 Feb 26
đź•ą Technology Tools
  1. Being near people who already understand and topic (high epistemic density) makes short, frequent conversations possible, and those conversations turn into real progress and friendships.
  2. Removing coordination friction with simple tools (like an easy coffee scheduler) makes casual local meetings happen more often, and that consistency helps relationships form.
  3. AI has compressed the time to build small apps, so problems that once felt too small now merit quick, imperfect projects you can ship in hours or days.

Revenge of the Dilettantes

Breaking Smart • 98 implied HN points • 20 Dec 25
đź•ą Technology Tools
  1. AI makes bespoke, one-off publishing and media workflows cheap and practical, so creators can publish essays, books, and artworks in custom formats instead of forcing them into standard platforms.
  2. AI tools empower dilettantes to be full‑stack creators, letting casual generalists produce art, code, and even robotics projects without needing deep craft mastery.
  3. AI transforms reading and learning by supercharging book clubs and study groups, enabling faster, deeper exploration, translation, and research that turns casual reading into sustained study.

Under the microscope: Ford Racing 3 (PlayStation 2, Xbox)

Rings of Saturn • 72 implied HN points • 09 Jan 26
đź•ą Technology Tools
  1. The commonly posted cheat codes for Ford Racing 3 are wrong, but there is a working unlock-all code: hold Select at the main menu and enter Up, Down, Left, Right, Left, Down, Up, Right, Down, Up to unlock all cars, competitions, and race types.
  2. Static analysis with Ghidra (using the Emotion Engine plugin) found the game's cheat tracker and showed it watches a 10-button sequence only while Select is held, triggering the unlock when the counter reaches ten.
  3. There is a second intended cheat (Down x10) that is present but points to a null function so it does nothing, and the Nintendo DS port doesn’t appear to include any cheats.

UV tricks

Bite code! • 1957 implied HN points • 15 Dec 24
đź•ą Technology Tools
  1. Using 'uv run' lets you run commands in a temporary environment without cluttering your main setup. This makes it easy to use big tools like Jupyter without installing them every time.
  2. The 'uvx' command works like 'npx', letting you test and run Python utilities quickly. It handles dependencies nicely, so you can focus on your tasks without worrying about setup.
  3. Creating scripts with 'uv init' helps you get started fast. It sets up everything you need, including project files and dependencies, making it easier to organize your Python projects.

How I Used Methodable to Have a Nice Tuesday

Human Programming • 51 implied HN points • 22 Jan 26
đź•ą Technology Tools
  1. A small meta-plan in Methodable can un-scatter your attention by giving you one clear instruction at a time so you follow prior intentions and finish high-priority tasks.
  2. Start with a simple seed meta-plan and gradually structure it: collect your to-dos, free-write motivations, then convert those into detailed, executable subprograms.
  3. Designing guided workspaces with time-boxing, embedded editors, and positive self-talk makes it easier to regain focus, stay motivated, and end the day feeling accomplished.

MakerNews - January 2026

Maker News • 22 implied HN points • 31 Jan 26
đź•ą Technology Tools
  1. Investing in the right bench tools and setups makes everyday electronics work faster, safer, and more reliable.
  2. Creative hardware hacking and reverse engineering often reveal far more capability than expected, from PID‑controlled glue guns to running DOOM on a smart pressure cooker.
  3. Open source projects and detailed writeups turn experiments into shared learning, helping others reproduce fixes, learn tapeout and PCB tricks, and build fun projects like 1D Pong or a lock‑picking robot.

Why Python Always Breaks

Data Engineering Central • 609 implied HN points • 19 Jan 24
đź•ą Technology Tools
  1. Python is a versatile language great for rapid iteration, prototyping, and one-off scripting.
  2. Python can be challenging for developers due to pitfalls like lack of strict typing and scoping rules.
  3. Best practices in Python development include clean, maintainable code, thorough testing, and strong peer-review culture for code quality.

Python 3.13, what didn't make the headlines

Bite code! • 1957 implied HN points • 25 Oct 24
đź•ą Technology Tools
  1. Python 3.13 introduces improvements in debugging tools like PDB, making it easier to work with errors and set breakpoints. This is a big win for developers who rely on debugging in their workflow.
  2. The shutil module has seen many bug fixes and enhancements, which means working with files and directories will be more reliable. Developers can finally use it without constant worries about it failing.
  3. There are small but useful updates for concurrency in Python, such as changes to asyncio and task management. These little updates add up to make handling multiple tasks easier and more efficient.

The perfect drawing tool

Ralph Ammer • 1022 implied HN points • 13 Jun 23
🎨 Art & Illustration Tools
  1. Selecting the right drawing tool depends on what you like and want to do with it.
  2. Hitting the limitations of a tool can push creativity towards unconventional ideas.
  3. The perfect drawing tool doesn't have to be complex, just master a simple tool and make it a part of yourself.

2025 in Review

the shimmering void • 46 implied HN points • 01 Jan 26
đź•ą Technology Tools
  1. Hands-on experimentation with LLMs and custom tools drove progress, and tight feedback loops proved more valuable than following hype or consuming social media.
  2. I reconnected with creative roots by shipping a game while making 50+ prototypes, plus music and art experiments, to reclaim playfulness and escape productised game design.
  3. I shifted from breadth to depth by prioritising archival work and refactoring my thinking, and now plan to clarify a design philosophy, pursue more meaningful software, and treat art and meditation as serious practices.

All your Python project in one file with shiv

Bite code! • 978 implied HN points • 02 Jan 25
đź•ą Technology Tools
  1. Shiv allows you to bundle your Python project into a single executable zip file, which includes all your code and its dependencies. This makes it easy to run your program on any compatible server without needing to install anything else.
  2. Creating a zipapp with shiv involves a few steps, including setting up a virtual environment and running specific commands to package your project. It’s important to understand the process to avoid common pitfalls.
  3. Using shiv can simplify deployment, especially for web services or applications with many dependencies. However, it does require Python to be installed on the target machine and might not work well with certain compiled extensions.

Why security has become easier

Frankly Speaking • 355 implied HN points • 02 Jul 25
đź•ą Technology Tools
  1. Security tools have improved a lot and are easier to use now. Companies can set up basic security measures quickly without needing huge teams.
  2. AI helps security teams by automating tasks and making their work faster. When used correctly, it can save time on repetitive tasks.
  3. There is now better data on security breaches which helps teams prioritize what risks to focus on. This makes good security practices more accessible and easier to implement.