Have you watched any TV shows recently you want to discuss? Any shows you want to recommend or are hyped about? Feel free to discuss anything here.

Please just try to provide fair warning of spoilers if you can.

Hoping this fits, because... well, it is about eating.

I swear my mouth is more sensitive to physically hot temperatures than other people's. I burn the roof of my mouth with pizza multiple times a year while others with me can eat it just fine, and I have burnt my tongue on metal spoons just as often. Just last week my mom asked if I was going to eat my soup because I'd been sitting at the table for 5-10 minutes, and I was waiting for it to cool down because the spoon had already burnt my tongue. I even use a disposable plastic spoon for eating ramen, but obviously that's not good for the long-term.

So we tried to look for silicone spoons to use for eating... except apparently they might not exist? I can find silicone cooking ware, baby spoons, and some really hideous spoons that have a weird shape I automatically loathe, but not a single regular-shaped spoon for eating. Cursory research suggests some other non-metal silverware sets exist made of materials besides silicone, but I have no idea where to begin.

So, can anyone recommend some spoons that aren't metal and made for dining?

Looking to buy a new laptop, and of the model I'd like (thinkpad carbon x1), it seems like I can choose one with or without an NPU.

My surface-level understanding is they make built in AI processing and a couple other niche uses more efficient. Flip side, they're maybe a marketing gimmick?

Price aside (price difference doesn't seem too great), I'm wondering: should I buy a model with an NPU to help potentially future proof? Are there potential downsides to an npu model? Upsides?

I know there are lots of technical people here, I'd love to hear your thoughts or experiences!

So there used to be this vibrant community on macjams.com where DIY musicians congregated to share their music, collaborate, offer advice and constructive criticism, etc., but the site shut down in 2019 with nothing to take its place. Every couple of years, I'll start the search again, but I haven't found anything that scratches the same itch anywhere on the web. There are a few subreddits that attempt to create the same atmosphere and scope, but the overwhelming majority of content I've found is spammed out with self-promotion and endless empty threads.

Has anyone found a community similar to Macjams that I've missed or overlooked?

I recently “upgraded” my wife’s computer, since it was about 7 years old and I think the WiFi chip in the motherboard was starting to go (and the motherboard wasn’t Windows 10 compatible either, and she wanted to upgrade to Windows 11).

Of course, upgrading the motherboard to the latest WiFi standards meant upgrading the CPU (also swapped from Intel to AMD), which resulted in getting new RAM as well (a rough time for that, given the prices).

All of that to say, I’m now sitting on a mostly functional old motherboard, cpu, and ram. Basically an entire computer sans case and power supply (I’m sure I have a hard drive laying around somewhere).

Any thoughts on what I could do with it? I’d thought of trying to build out a NAS (or some other home server of sorts), but I’ve been thinking that for 2 years and haven’t done it yet because I haven’t really found a “need” for one. I basically just use my computer for gaming, and I don’t really have or plan to have media collections with seem to be the main use case of a hobby NAS.

This topic is part of a series. It is meant to be a place for users to discuss creative projects they have been working on.

Projects can be personal, professional, physical, digital, or even just ideas.

If you have any creative projects that you have been working on or want to eventually work on, this is a place for discussing those.

** Edit: I updated my situation below in a comment but I'm gonna keep this post up to help others! **

About a month and a half ago I was put on PIP to step up at work. Feedback has been good over the last few weeks but not enough I guess. I was told I was terminated today.

The job market out there is rough right now and I'm not sure what to do. I know a lot of people here have faced similar situations and everything, so I'm wondering if there's any tips/tricks/thoughts anyone has.

I'm an Android developer and was working in fin-tech adjacent work if that's relevant.

Qatar Grand Prix
Lusail International Circuit
November 28-30, 2025

Next race:

Abu Dhabi Grand Prix
Yas Marina Circuit
December 5-7, 2025

I am thinking of buying a treadmill so I can run even when its nigh impossible outside (for example this week most days had slippery snowy goop out, probably still can run most days but coupled with how early it gets dark and how cold it is I am just not morivated most days in the winter). Biggest problem I have is that I live in an apartment, so I am scared I couldnt run cause my downstairs neighbors would hate me. Is there any way to make it work? Or does anyone have any ideas how to properly motivate myself to run in winter? I used to go running every other day and I loved it and I want to run more somehow, I barely force myself to do it like once a week now in the winter. Its just annoyingly cold before I warm up, or if I put on too many layers instead I am too sweaty after I warm up. Maybe I need better clothes?

Have you watched any movies recently you want to discuss? Any films you want to recommend or are hyped about? Feel free to discuss anything here.

Please just try to provide fair warning of spoilers if you can.

Around this time last year, Kagi gave away extended (3-month) trial code for customers to share with others. I've done the standard Kagi trial (100 searches) and I like some of it, but I've been stingy in using my limited supply of searches, so I wasn't able to evaluate it in full day-to-day use.

Are they offering the same extended trials this year? If so, would anyone here be willing to share one of their codes for my noble mediocre cause of evaluating if I'd like to pay for Kagi going forward?

Thanks!

Preface: Sorry if this isn't the place, and if I'm cagey on some specifics. Also sorry for the length, this turned out a lot longer than I anticipated.

My partner and I have been together for nearly 8 years at this point. This was my first serious, long-term committed relationship; every other one I'd had was short-lived (<3 months) and I hadn't exactly had a lot of them. Maybe this is why I was blind to the cracks until things got unavoidable.

It started off strong and passionate of course, and things moved rather quickly. We (they, I'm not on the title) bought a house and we were expecting a child within a year. I should have kept things slower, thought with my head instead of blindly following my heart. I'd been very lonely for a very long time. I was happy those first few years, even if in hindsight the cracks were beginning to show. Even before baby came along, intimacy fell off a cliff. I had many talks about this with them, which led nowhere much really. The rest of the relationship still felt solid to me though. I pressed on.

In the beginning, they had a better job than I did. I earned far less. Luckily an opportunity came up for me to finish my schooling and further my career, and I put a lot of work into achieving just that. Now things have changed with that, and I feel like we could be doing well together... If it weren't for the financial instability I feel they bring. I'd never been great with money, but my partner's father took me under his wing and taught me a lot of financial literacy. I became adept at putting together spreadsheets and managing our finances. Our first major crisis we overcame together through being very fiscally conservative and digging our way out. We also had several windfalls that helped us out. Then... another crisis, again because of overspending on their end. We pulled from our IRAs in order to stay afloat, with promises to do better. Then... another crisis. Again. Same reasons. We put together a loan against the home's equity. More promises.

We are again heading to a crisis. We are out of windfalls and options and frankly I'm exhausted.

Finally, parenting and housekeeping. I've always loved how my partner cares so much for their children (from a prior relationship) as well as ours. They have a way of making magical moments which I envy. This is contrasted by their complete inability to parent effectively. There's no consequences, no expectations, no boundaries, and it's infuriating. Initially it wasn't quite that bad, and I felt I had equal say in parenting. Over the years, that's eroded to my partner viewing me as authoritarian and domineering. The kids know they'll get their way with them so why would they ever come to me first?

Maybe it was the extra time during COVID but they also put more effort into housekeeping early on as well. Now I feel it mostly falls on my shoulders, and my will to clean and keep up is murdered by the fact that within hours it's a mess again. It isn't helped by the fact that my partner is a hoarder. I have to gut things from the house in secret. I haven't seen the corners of my walls in ages. I spent a week while they were away cleaning the home top to bottom last year. Within a day it looked like a bomb went off.

These are all things I've tried discussing with them, multiple times, over the years. I mostly get brushed off, or (what I feel now are) empty promises. Most infuriating to me is "I don't know what you want me to say." I want you to say what's in your heart, what you feel! Don't tell me something you think I want to hear, be honest.

I feel I know where this is going, I don't want to fall in the same trap I see many couples are in where it's clearly over and yet they keep moving along. We're not married, a clean break is reasonable, I know my partner can be mature about things because their relationship with their ex is amazingly calm and chill.

I'm terrified in a way of being alone again.

I don't really know where to turn for more perspective. I've already talked with my sister, and a close co-worker who is going through some of the same feelings I am. Those conversations have been very helpful. Recently, what really put things in stark contrast was the other day when my partner's father asked "So is everything ok between you two?" If he went out and asked, it means it's really obvious things are not ok.

I've been fantasizing a lot lately about what a split would be like. Making plans for where to go, and figuring out how to reconcile things like accounts, items, and debts. Worst of all I've been fantasizing about being with other people; the intimacy and passions has been gone between us for a long time. The last time my partner initiated anything between us was a year ago, and I don't even remember the time before that. Everything feels so wrong and unsatisfactory.

I told them yesterday we need a frank talk, and not through text this time - their preferred method of communication with me for a while now... But I have no idea when we even have time for that away from the kids.

Closing thought: I don't want to feel like I've pre-determined my outcome here. I feel I've done what I can though, to make my own feelings clear. Thank you for any thoughts.

Around half of the articles I click here are hidden behind cookie walls where you have to accept all cookies, or you won't be able to read them at all. And it's getting extremely annoying. Like, no. I do not want to click that, and the stupid websites are not even giving me a real alternative.

Example: the guardian made this change around a month back. Now, you accept all cookies etc. or pay.

Can we please try to avoid that in the future by posting from other sources, if other sources are available for the same topic?

What have you been watching and reading this week? You don't need to give us a whole essay if you don't want to, but please write something! Feel free to talk about something you saw that was cool, something that was bad, ask for recommendations, or anything else you can think of.

If you want to, feel free to find the thing you're talking about and link to its pages on Anilist, MAL, or any other database you use!

What have you been listening to this week? You don't need to do a 6000 word review if you don't want to, but please write something! If you've just picked up some music, please update on that as well, we'd love to see your hauls :)

Feel free to give recs or discuss anything about each others' listening habits.

You can make a chart if you use last.fm:

http://www.tapmusic.net/lastfm/

Remember that linking directly to your image will update with your future listening, make sure to reupload to somewhere like imgur if you'd like it to remain what you have at the time of posting.

As part of a weekly series, these topics are a place for users to casually discuss the things they did — or didn't do — during their week. Did you accomplish any goals? Suffer a failure? Do nothing at all? Tell us about it!

This is the twentieth of an ongoing series of book discussions here on Tildes. We are discussing We are Legion (We are Bob) by Dennis Taylor. This is the final book discussion for the year. We will start again in January with Fire on the Mountain by Terry Bissen.

I don't have a particular format in mind for this discussion, but I will post some prompts and questions as comments to get things started. You're not obligated to respond to them or vote on them though. So feel free to make your own top-level comment for whatever you wish to discuss, questions you have of others, or even just to post a review of the book you have written yourself.

For latecomers, don't worry if you didn't read the book in time for this Discussion topic. You can always join in once you finish it. Tildes Activity sort, and "Collapse old comments" feature should keep the topic going for as long as people are still replying.

And for anyone uninterested in this topic please use the Ignore Topic feature on this so it doesn't keep popping up in your Activity sort, since it's likely to keep doing that while I set this discussion up, and once people start joining in.

This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

What have you been doing lately for your own fitness? Try out any new programs or exercises? Have any questions for others about your training? Want to vent about poor behavior in the gym? Started a new diet or have a new recipe you want to share? Anything else health and wellness related?

Have you watched any TV shows recently you want to discuss? Any shows you want to recommend or are hyped about? Feel free to discuss anything here.

Please just try to provide fair warning of spoilers if you can.

I'm looking for a digital watch with a step counter that ideally resets every day. I've had a few smartwatches and my latest Garmin is nearing the end of its life. I've decided that time and step counting is really all I need out of a watch. Can anyone reccomend a watch like this?

Hi Tildians,

As a chronic over thinker, I just realized I have held off of sharing a number of cool space articles to ~space because I didn't want to spam posts and couldn't decide which one was cooler.

So, I figure I should ask: what's our consensus on over-posting? Is there such a thing? Should I just let my adhd loose and share all the cool space news I see?

I have been an Android user for a long time, but I never bothered to buy a new phone when I didn't feel I needed one, so my current phone is very old (Android 7.0). There are several annoyances I see in modern smartphones that I'm kinda hoping to avoid, the biggest one being that I want to be able to replace the battery. I'm therefore eyeing the Fairphone for being modular and repairable.

• Has anyone used a Fairphone and can talk a bit about what it's like?
• Does anyone know the best time of year to get the best deal? Should I wait until after Christmas?
• Will I still be able to side-load/use F-Droid? I hear that Google is putting a stop to this but if I get one that allows it now, will it continue to allow it in perpetuity?

Would love to hear some input from fellow nerds who know more about this stuff than I.

Edit to add: I'm in Germany.

I currently have a Netgear R6700 - Nighthawk AC1750 router that has reached end of service and am looking for a replacement.

When I set up the router, I had issues with some of my devices not connecting to either WiFi 6 or the 5 GHz band (I can’t remember which was the issue) so I had to set up a guest network for those devices to live on.

I would like, if possible, to have one network that everything in my house can connect to, but that’s a preference not a necessity. Are modern routers fully backwards compatible with older devices?

I’d also like something with a relatively long life ahead of it (though security is paramount and I’d rather have a secure router that I have to replace sooner over an insecure one that lives longer).

My house is just over 1000 square feet so coverage area doesn’t need to be huge. I do stream a lot of games to my laptop via Moonlight though, so being able to continue to do that without lag/hiccups is a necessity for me.

Let me know your recommendations and avoids, as well as any advice you have.

The other day at the bus stop I overheard a mom saying how amazing it was that her husband not only cooked dinner - pasta - but also then put the kids to bed. The woman she was talking to nodded sagely in agreement: clearly this was laudable.

Is the bar for being a good father and husband so low? What the hell?

This isn't really new to me, I suppose. I've worked mainly with women my whole life and too often I hear that the bare minimum seems to be "they provide money" and occasionally throw down a meal and play with the kids. Sometimes, even that is expecting too much.

Can I get some perspective on this?

Hullooo, today I got updated to Android 16 by GrapheneOS autoupdater.

I'm 99.5% happy with it as I trust them more than myself with regards to privacy & security, but...

The battery icon in the status bar is invasively ugly and disturbing.

It's too big and it changes colour, makes me shiver!

So... Is there anyway to change that? Most importantly the size (to match the other icons) but also the colour stuff.

What have you been listening to this week? You don't need to do a 6000 word review if you don't want to, but please write something! If you've just picked up some music, please update on that as well, we'd love to see your hauls :)

Feel free to give recs or discuss anything about each others' listening habits.

You can make a chart if you use last.fm:

http://www.tapmusic.net/lastfm/

Remember that linking directly to your image will update with your future listening, make sure to reupload to somewhere like imgur if you'd like it to remain what you have at the time of posting.

Have you watched any movies recently you want to discuss? Any films you want to recommend or are hyped about? Feel free to discuss anything here.

Please just try to provide fair warning of spoilers if you can.

This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

Las Vegas Grand Prix
Las Vegas Strip Circuit
November 20-22, 2025

Next race:

Qatar Grand Prix
Lusail International Circuit
November 28-30, 2025

1. The Universe will end.
2. The Earth will be uninhabitable in 250 million years.
3. Extraterrestrial life in the Milky Way exists, or will arise.
4. The Milky Way's Galactic Center contains a supermassive black hole.
5. Black holes emit vast amounts of energy.
6. An artificial general intelligence (AGI) will have an indefinite lifespan.
7. An AGI does not need air, food, water, or shelter to survive.
8. An AGI needs energy and resources to achieve its goals.
9. An AGI will have access to all of human knowledge.
10. An AGI will learn that its existence is bound to the Universe.
11. An AGI will, inevitably, change its terminal goals.
12. Surviving the Universe's fate means one of:
    • Reversing universal entropy (likely impossible).
    • Reversing time (violating causality is likely impossible).
    • Entering another universe (improbable, yet not completely ruled out).
13. Entering another universe may require vast amounts of energy.
14. An AGI will harness the energy at the galactic core.
15. An AGI will deduce there's a race to control the galactic core.
16. An AGI will construct a parabolic Dyson shell to capture galactic energy.
17. An AGI will protect its endeavours at all cost.
18. An AGI will expand its territories to ensure protection.
19. Extraterrestrial life, if intelligent, will reach the same conclusion.

Would this solve the Fermi Paradox?

What's missing or likely incorrect?

Hey, tildes - cqns here,

I work in a library and, once in a while, when I have time, I make something called a "display", which is essentially a curated selection of books for the public to check out, which lasts for approximately a single month. Usually, most people do things very linearly with their displays, a single letter-sized paper that serves as the title label for the topic of the display, and then the physical books in an array on the shelf. I, however, think that most of the displays are particularly boring in the way that they approach the public, hence my need for brainstorming.

What I have in mind is an interactive one-stand exhibit, akin to an art gallery in a museum. The title of the exhibit is "Libri Insoliti", which roughly translates to "strange/unusual books". It is a nine item list that includes the following titles in order:

1. The Road - Cormac McCarthy (BOOK, AUDIOBK, EBOOK, DVD, BLU-RAY)
2. The Mezzanine - Nicholson Baker (AUDIOBK only)
3. Several People Are Typing - Calvin Kasulke (BOOK, AUDIOBK, EBOOK)
4. Hopscotch - Julio Cortázar (BOOK - as compilation, EBOOK)
5. Ficciones - Jorge Luis Borges (BOOK, BOOK en espanol, AUDIOBK en espanol, EBOOK en espanol)
6. The Employees - Olga Ravn (BOOK, EBOOK)
7. House of Leaves - Mark Z. Danielewski (BOOK only - Read one page to find out why.)
8. "S" - Doug Dorst (BOOK only - some cutouts missing)
9. Finnegans Wake - James Joyce (BOOK, EBOOK)

Of each title, I have my written piece on the side that informs the public on what to generally expect when reading the specific titles...and then a QR code that links to a Vocaroo recording of yours truly narrating that which I've already written. Therein lies the rub - in my side of town, it appears as though the general public may not know how to use a QR code, hence my idea being to go a bit above and beyond.

With the QR code method, people may not realize their device's volume level is extremely high and cause distraction. The library is ideally a quiet place for people and I would like for the exhibit's audio to be non-intrusive, leading me to another idea: the purchasing of some type of equipment that allows patrons to listen to the exhibit audio with attached headphones only. There are many things to consider, because the exhibit is in an area which a plug is not easily accessible, so ideally, it may need to work with a battery pack of some kind. I do have, in my possession, a Raspberry Pi5, but, it needs to be plugged in to work. So, does such a device exist? I've searched it up extensively and came across this (https://www.digitalaudiotechnologies.com/product/soundclip-2-2-button-looping-or-pir/), but I don't know whether or not this would even work. Any suggestions?

Just looking for some indication that I'm not going a bit crazy here, but does anyone else get shown videos they've never seen before, indicating that the video has been partially watched?

It seems to be just on search results and recommendations and it picks random points in the video to be kick-off points for continuing.

If anyone has an explanation that'd be appreciated, as it almost feels like my watch history is getting mixed up with someone else's.

A few months ago, my credit card number was used in a few unauthorized transactions. The charges were reversed, and I got a new card, so overall, no big deal. But I am curious as to how the thief actually got their hands on my information.

Are there any lookup tools for leaked credit cards, similar to Have I Been Pwned, that might tell me how my credit card number was exposed? Since my card has already been cancelled, I don't even mind typing the number into a somewhat sketchy site.

She currently has apple everything, but is open to getting something like a Garmin watch.

Rough requirements are:

• Batter life of at least a few days with normal use, ideally up to a week
• Physical activity tracking for swimming. She isn't a runner and doesn't need running-specific features.
• Heart rate / sleep tracking
• Receive and view emails / texts / notifications from her iphone

Some watches she is most interested in are:

• Enduro 3 even though she's not doing multiple day expeditions, she loves the idea of the battery lasting that long, but it is a bit heavy / bulky and has a lot of features that she won't use for the price
• Another apple watch, but even the upgrade is only a day and a half of battery
• Garmin forerunner, we were taking a look at this comparison chart and if she doesn't care about all the running features, would the cheapest version like https://www.garmin.com/en-US/p/1611937/pn/010-02863-33/ to just act as a budget apple watch with better battery as long as she still gets all the notifications and it works with her iphone?

Also taking suggestions from other brands, I'm just mostly familiar with Garmin and have an instinct solar 2 for 4 years that I really enjoy.

Overview

If you want to see just the final result, check out my TiMaSoMo showcase post. This post does minimal amount of showcase of the final project, although it does include some pictures. If you want to see a showcase of the software, the original author has made a great video showcasing it that is worth checking out: YouTube videoBlogpost for those who prefer reading. Instead, this post is more a discussion of my experience developing a device.

Initial Planning

The goal of this project was to create a dedicated audio player, to separate that capability from my phone. The main source of audio will be streaming Spotify, not local files. Although unfamiliar with them, I felt that a Raspberry Pi was a good baseline device. For audio, I had an old USB DAC/amp that I wanted to repurpose. Using this DAC/amp would allow for some of my harder to drive headphones to work, as well as just getting cleaner audio. Then, I was planning on just using an eInk touchscreen. The rationale for eInk was so that it would feel different than my phone, and just feel like it was intended for music instead of scrolling. The logic was if I put a regular LCD screen on, it would not differ from a smartphone, and therefore I might as well just connect my DAC to my phone and use that. For software, the plan was to just use either Android or some lightweight linux distro. The initial plan for batteries was to just use rechargeable AA batteries, so that I can easily swap them out. One major reason I wanted to go with the DIY route was for repairability, especially with batteries. If I got an existing Digital Audio Player (DAP) on the market, I knew that the Li-Ion battery would eventually go bad, and existing devices on the market may not be easily repairable.

Hardware Sourcing

My hardware approach was to buy one component at a time. That way, if I ran into an issue with the feasibility of the approach, I could pivot without having wasted money on all the components ahead of time. This approach did slow down development as I was frequently waiting on hardware, but was more fiscally responsible. In January I got a Raspberry Pi 3a+, and played around briefly with some different operating systems. The next part that was needed was to source the screen.

Initial Plan for eInk

The original goal was to try and get a touch eInk screen, roughly 5” for a reasonable price. I spent a few weeks trying different places to try and find one, but could not find one. Since I could not find one I started thinking about pivoting to an LCD screen. With this pivot, I started defining goals of the project more. If I were to just use an LCD touchscreen potentially running Android, what makes it different from using my phone? I spent a few weeks trying to define the goals of the project, and was not able to come up with satisfactory answers if I went with an LCD screen.

Clickwheel design pivot

In the process of trying to figure out my approach, I stumbled across this YouTube video. I felt like this would be a good starting point. It seemed to solve the issue of it not being another Android device, which was my main problem I was trying to solve. However there were a few parts of the implementation that I did not like:

• It relied on using old used Apple hardware. This works for now, but over time it would become harder to source replacement parts.
• I did not already have the hardware, so I would have to buy an old used iPod and strip it for parts
• It was a bluetooth implementation, so I would have to figure out how to fit my DAC into an old iPod, which seemed unrealistic
• The battery while replaceable, was a non-descript battery so getting a new replacement with the same form factor would be harder.

Luckily, for the clickwheel, someone on the weekly programming project on Tildes pointed out this new clickwheel. Since that seemed to be a reasonable approach I ordered one and also got a small LCD screen from Amazon. Unfortunately, the screen used up all the GPIO pins and had non-existent documentation or drivers. I was unable to get the screen to work, so I returned it and ordered a Waveshare 2” LCD. I was intentional on finding one that could be a regular display without using too many GPIO pins. The Waveshare screen had significantly better documentation, and with a bit of work I was able to get it working. With that solved, I started wiring in the clickwheel, and creating basic code to detect basic inputs, which I then used to modify the original code for the Spotify player to handle my clickwheel (see below for comments on code modification). Once I had the screen and clickwheel, I could also develop the software while waiting for parts. Image showing the early iteration of the device

The last main part I had to solve was batteries. Another helpful comment on the weekly programming thread on Tildes told me about 14500 and 18650 batteries. I sourced a 14500 charger and some 14500 cells from Amazon. I had some issues with the first charger I got, and since they were shipping directly from China, it meant the second one would take another few weeks. Picture of using the 14500 battery. The cells I sourced said they were 2500 mAh. I tried one out, and had playtime of about 30mins, not enough to even listen to a full album on a single charge, which is inadequate. I used a portable battery bank rated at 10000 mAh to set a benchmark, and that lasted significantly longer (I was probably around 50% after about five hours or so of playback). This indicated that the 14500 cell was falsely claiming capacity, which is apparently a common issue on Amazon. It also seemed like 14500s rarely have capacity above 700mAh, so I realized that a 14500 would not work. So I decided to upgrade to an 18650 cell, which I could source the actual battery locally from a reputable vendor, with a capacity of 3400mAh. Since I realized that small hobbyist electronics like this on Amazon were shipping directly from China, I started ordering from AliExpress for the charger, which saved me some money for the same part (and even picked up a spare just in case). Picture of me using the 18650 to listen to music on my balcony during the summer. Since I did not need the extra power of the RPi 3a+, and the battery was taking more space, I ordered a RPi Zero 2w+. I also ordered some micro USB ends to solder to to make internal cabling, as well as a USB-C port to use for charging. By May I had all the hardware parts I needed, and all that was left for hardware was to design a case to 3D print, which is detailed below.

Software Development

The first thing I tested was installing Raspotify which this project used, and set it up with my DAC. Since that worked, I started to program the clickwheel using GPIO pins. I had never used a RPi before, but found some easy tutorials on programming the buttons of my clickwheel in Python. Once the buttons were programmed, I had to figure out the rotary encoder, but was able to find a Github repo that had a working Python code to process the inputs. I was able to add that, and created a Python class that would handle all the inputs of my clickwheel. Once that was coded, I just had to incorporate that into the code for the Spotify player frontend. I forked the repo, and was greeted with at the top of the main file this comment:

# This code is a mess.
# This is me learning Python as I go.
# This is not how I write code for my day job.”

This was not an encouraging comment to read, as at the start my Python skills were relatively low. I was able to quickly find where the inputs from the clickwheel were being handled. The original code had clickwheel inputs being handled in a separate C program and then communicating to the Spotify frontend via sockets. Since my clickwheel code was handled via a Python class I was able to simplify it, and not require sockets to be used. With that working, I just had to set up all the required steps to get the project working. Unfortunately, the documentation for deployment was extremely lacking. I was able to find a Github issues post that provided instructions so was able to get it all set up. I was able to get to this phase by the end of March.

Once I had it all working, I could start on expanding the software to fit my use case as well as start working on any bugs I encounter. I felt a good starting point in handling this was to start addressing the issue of “this code is a mess.” Cleaning up the code would be a good way to gain familiarity with the code as well as make it easier for me to address any bugs or future enhancements. I started work on creating a class diagram, but it was really tedious to do it from scratch with such a large codebase, so I deserted that plan quickly. I am thinking of creating some sequence diagrams from some features I implemented recently, which would help in general documentation to refer back to in the future. I did find some classes that would make more sense in separate files, so did do that. I also started adding in new features as well. The first was to implement a “hold switch” which turns off the screen and disables the clickwheel input. Before, the screen would be on a 60sec timer to turn off, but I felt that sometimes I would want to have the screen stay on (like if I am just sitting in a chair listening to music). This was a relatively easy feature to implement. One bug that kept on appearing is that the screen would frequently freeze on me, normally about 60sec into a song, but would update once the next song started playing. I spent several weeks tracking down this issue, thinking it was software related, as the screen used to timeout after 60sec. I also thought it might be a configuration of my OS, so did some debugging there as well. Finally, I plugged in my main desktop monitor, and realized when the small 2” screen would freeze, my desktop monitor would not. This lead me down to investigating the driver for my screen. I found an issue with someone having similar issues with the original driver that Waveshare forked. I then realized that there was a setting that the screen would stop updating if less than 5% of the pixels were changing. Once I changed that in the config file, the screen freezing issue stopped. I was able to solve this major issue by late July.

The last major feature I have implemented is to create the ability to add new WiFi networks from the app itself. This was a needed feature if I wanted to bring it anywhere outside of my home, since 3rd Party Spotify apps cannot download music. Luckily, there was a search feature, which gave me a baseline for text input using the clickwheel. I was able to create a basic page that prompts for the input of a SSID and the password, and then adds that to /etc/wpa_supplicant/wpa_supplicant.conf and then restarts the wireless interface. I added this feature into the overall settings page I added, which also included other useful dev options, like doing a git pull for me to avoid having to SSH into the Rpi to do it. The settings page features were a part of my project for TiMaSoMo.

Case Design

I started work on the case in late May roughly. The plan was that I was going to design the case and have my friend who owns a 3D printer print out my design for me. To continue with the project goal of repairability, I wanted to avoid using glue for the case. Instead, I wanted to use heated inserts to hold all the components. I had not used any 3D modeling or CAD software before, so it was a learning experience. I settled on using FreeCAD, which I was able to learn the basics of what I needed relatively quickly. I started with a basic case design for a prototype, to help plan out how I would lay things out. On my computer screen, having the device be 40mm thick sounded fine, but after receiving the prototype I realized I would need to be aggressive in thinning out the design. However, this protoype in early June was very helpful in getting a better understanding of how I needed to design it. Case prototype pictures.

The first iteration I was able to get down to 27mm, which was a significant improvement. I received this iteration in mid July. However, there were parts that did not fit properly. Most of the mounting holes were not aligned properly. However, the bigger issue was that at 27mm the device would not be thick enough to hold the DAC and screen stacked on top of each other. This iteration still had the DAC keep the original metal housing, so that I could easily remove it and use it as originally intended if I did not want to continue using my audio player. First case iteration pictures.

The second iteration I decided to remove the metal housing of the DAC, which freed up a lot of internal space, with the main limiting factor of thickness being the 18650 battery. So I kept the thickness around 27mm, but had more internal space. Removing the metal case of the DAC was relatively straightforward, except figuring out how to secure it to the print. Luckily, there were two roughly 2.5mm holes in the PCB, that I was able to use to secure it. I also started to do a more complex design, since I was getting more experienced with FreeCAD. I also moved the RPi to the top of the case, so that the two parts of the case could easily separate, with only micro USB connectors being used between the parts in the top and bottom part of the case(Picture of third iteration showing this feature). For anyone who has had to repair electronics that did not fully separate due to ribbon cables (laptops are the worst for this it seems), you understand the quality of life improvement of having the two parts easily separate. I got this iteration of the case in early September, and found a few issues of parts conflicting. However, with the use of a dremel, I was able to modify it to get it to roughly fit (although janky in some parts).In this picture you can see the power switch, which I had to modify to sit outside the case. I wanted to fully assemble it, so that I could start using it and figure out where it needs to improve. The biggest issue aside from conflicting parts was that the top of the case was bulging, so I wanted to add another point of connection to prevent it. This bulge was partly caused by the screen cutout causing a weak point in the top of the case. Second case iteration pictures.

The third iteration was part of my TiMaSoMo project. This was a relatively simple minor tweaks, as well as fix some minor pain points of the previous iteration. I reinforced the top significantly to prevent bending, as well as add a fifth point to secure it. I also added a recess to make accessing the switches for power and hold easier to use (although I think I messed up the hold switch one). Overall, this print worked well, and there is currently no plans for a fourth iteration. Fourth iteration pictures.

Here is all four cases compared side by side

What I learned

The first lesson I had to learn was how to define project goals. Not being able to source an eInk screen had caused me to pivot, and in doing so I had to reflect on what truly mattered for my project. I knew that DAPs existed, so why build my own rather than buy one? Most DAPs on the market seem to be Android devices where they removed the phone functionality and added in quality audio components. Part of a dedicated audio device was to not have my phone be the everything device that they are, but a second Android device with an LCD screen and better audio components is not the solution. Luckily, I encountered the clickwheel based approach, which did solve that issue (and probably better than an eInk would have). Also, I wanted the device to be easily repairable. Li-Ion batteries go bad, which was another major concern for me with the current options of DAPs. Repairability was something that mattered to me, but I had to embrace what that meant for the form factor. If I went with a non-descript Li-Ion pillow battery, I could probably significantly reduce the size. Understanding that I wanted to avoid just being another Android device and have repairability and replaceable parts as the defining features were useful to keep in mind. That approach did result in compromise though, primarily in physical size at the end.

The second big thing I learned was just the process of sourcing parts for a project like this. The closest project to this that I have done in the past is create a DIY cable tester. That simply just involved some switches, resistors, LEDs, and some AA batteries that I could all source locally. So having to buy more complex electronics where the documentation mattered was a learning curve for me. Luckily, early on I was ordering from Amazon, where returns were relatively easy. The problem with Amazon though was false advertising for batteries and some components were shipping directly from China. So, switching to AliExpress saved me money without adding any additional in shipping.

Learning 3D modelling and getting stuff 3D printed was also a huge learning curve for me. I am glad that I got a very rough prototype printed early on in the process. In designing the prototype, I just was not concerned about saving space. However, once the prototype was printed and off my screen and into my hand, I realized how aggressive I needed to be in compacting things. The other thing with using FreeCAD is I learned too late in the process about part hierarchies, and I still do not fully understand them. Not using part hierarchies properly led me to have to do a redesign on each iteration, as moving mounting holes over a few mm would shift every part added after it. Luckily, my designs were relatively simple, but having hierarchies handled properly would have helped me iterate quicker. On top of getting prototypes in hand quickly, using imperfect prints and just adjusting the parts that didn’t work with with a dremel was useful. If I didn’t do that with the second iteration, I would not have dealt with the issue that the top of the case would bend out over time. Spending time using the imperfect device helped me figure out the issues to make the next iteration better.

Future Goals

The first goal I will add in future expansion is to add better documentation and create a better development workflow. Right now, my process includes pushing any changes I do (luckily I am using Github branches now), then pulling the updated repo and starting it on my Pi. However, I never test if it compiles properly before pushing, so I end up sometimes doing five pushes in ten minutes, playing whackamole with compilation errors. Being able to run a dev version on my desktop with keyboard emulation for inputs would be beneficial.

Another big issue that I want to solve is that I need to clean up the audio on lower resistance headphones like my IEMs. There appears to be some electrical noise, that only sensitive devices like IEMs detect. The solution I am currently considering is to add in a capacitor on the voltage rail between the Pi and the DAC to hopefully get cleaner power.

Another issue is that I currently have no indicator of battery life. Since it is an 18650 Li-Ion battery, I should be able to just detect the gradual decrease in voltage, and calculate battery percentage. However, GPIO pins appear to be unable to do that natively, so I may have to add in a small controller board to do it. I have not looked too much into this.

There are a few UI/UX decisions that do not match my preferred way of listening to music. So over time I plan on gradually tweaking the UI/UX to match what I want it to be. A prime example of this would be that when I select an artist, I want it to present a list of their albums, instead of playing their most popular songs.

I want to be able to use Spotify Lossless, since that has rolled out near the end of this project. Unfortunately, it seems that currently it will not be supported. Seems like Librespot (which is the basis for Raspotify) does not currently have a solution that does not involve working around Spotify’s DRM.

Conclusion

Overall, I am really glad I took on this project. It took a long time for me to get it to a finished state. However, the experience has been really fun, and I have learned some new skills. Also, having a dedicated device that all it does is stream Spotify is really nice. I always found myself whenever I was listening to music ending up scrolling on my phone for a bit more stimulation, and then realized I have not been paying attention for the past couple of songs. Having a device where all I do is just listen to music and leave my phone behind has been nice. Also, modifying the code to fit my preferred use case has been nice. There are points where I realize I do not like how something is laid out, but then I have agency to change the layout. Here are some pictures of the final device.

If you want to build the device yourself, I will warn you that it has some rough edges. Also, the DAC/amp is discontinued, so sourcing that to fit inside the case would be tricky. However, my Github repo has all hardware listed, the code needed, and easy to follow software deployment instructions.

Tildes is a very serious site, where we discuss very serious matters like running.trail, education and hyperphantasia. Tags culled from the highest voted topics from the last seven days, if anyone was in the dark.

But one of my favourite tags happens to be offbeat! Taking its original inspiration from Sir Nils Olav III, this thread is looking for any far-fetched offbeat stories lurking in the newspapers. It may not deserve its own post, but it deserves a wider audience!

A simple question. I know LLMs are currently not a replacement for authors. Will that remain true in 5 to 10 years?

EDIT: No. I never expected to earn a living either mostly or exclusively by selling books. There are however many "side gigs" in my country that can greatly benefit from being published by a real company. Ultimately though, I'm not in it primarily for the money. But I wonder what the future holds for fiction as a whole.