News for hackers. Stuff that matters.

surgomat

Thank you! Really appreciate.
Hey thanks a lot.

If you have specific trackers or APIs in mind, feel free to share would love to hear more about your use case. Strava/Garmin/Apple? What do you want to see in workout.cool : hearthbeat, steps, .. ?

Thanks mate!

Right now, it's a mix of both let's say.

first, local storage during the session (useful for example in gyms, garages, or basements with poor or no connectivity)

second, syncs with the backend once the session ends and if failed, periodically.

For the tracking, the idea is to eventually generate progress graphs, track "volume" over time, and visualize trends for each exercise or muscle group.

More to come on that front :D

Yes. Planning to add difficulty levels and progression-friendly alternatives (e.g. pike push-ups, dumbbell presses, etc.) so you can train the same muscle group at your current level with the same button as you can see "Shuffle".

I can imagine some "Decrease difficulty" button. (or inverse).

Appreciate the feedback

Just jumping in here to feed my ego :D

after 15 years of lifting, I'm currently pushing 4x10 with 50kg dumbbells on the bench. So yeah, 35kg after 25 years seems odd unless those 25 years weren't exactly "serious" or "consistent" let's say.

No judgment, but yeah

Re:Workout.cool – Open-source fitness coaching platform on Thursday June 19, 2025 @03:28PM (#44321733)
I felt the same way when workout.lol went quiet! really pushed to rebuild something that would last without video licensing issues this time.

So welcome back glad to have you with us again :) !

Re:Workout.cool – Open-source fitness coaching platform on Thursday June 19, 2025 @02:30PM (#44321233)
We recently (a few hours ago) switched providers to handle the traffic/databse better.

Everything should be back to normal now

Really appreciate your patience and thanks again for giving the app a try and sorry again guys.

Re:Workout.cool – Open-source fitness coaching platform on Thursday June 19, 2025 @10:16AM (#44318905)
Thanks for flagging that and sorry you're running into login issue mate.

That error can sometimes appear even after a password reset due to a session mismatch (I'm working on improving that flow this afternoon).

In the meantime, you can try logging in with Google? it should work smoothly and skip the password altogether...

Re:Workout.cool – Open-source fitness coaching platform on Thursday June 19, 2025 @07:56AM (#44317797)
Thanks for sharing. I actually didn't know about Liftosaur before, but I just checked it out and I love their UI! Super clean and well thought out.

Definitely going to keep it in mind.

Thanks for the discovery

Re:Workout.cool – Open-source fitness coaching platform on Thursday June 19, 2025 @07:54AM (#44317790)
Awesome move from Stronger By Science

That said, they're mostly full training programs i guess, while what Workout.cool or the old Workout.lol project needs is more at the "individual exercise level" let's say. Videos, metadata, structure, etc.

If they ever open-source a library of exercise videos with clear licensing, that could definitely help yep

Re:Workout.cool – Open-source fitness coaching platform on Thursday June 19, 2025 @06:41AM (#44317301)
You're very welcome mate:)
Re:Workout.cool – Open-source fitness coaching platform on Thursday June 19, 2025 @06:40AM (#44317293)
The error should be fixed, thanks for the screenshot mate. As a digital nomad, i totally hear you on the traveling with bands situation and yeah, repeating the same 3 workouts gets old reeeeally fast.

One of the goals with Workout.cool is to offer more "variety" and inspiration let's say. Planning to add 5 to 10 exercices per week.

Re:Workout.cool – Open-source fitness coaching platform on Thursday June 19, 2025 @06:37AM (#44317268)
Ahahah hell yeah! Nerds with routines, spreadsheets and gains let's keep pushing both code and plates

Honestly, I think it's also tied to growing awareness around how much time we all spend sitting. Yesterday i was sitting 19h.

More devs and tech folks are realizing that staying active is kind of essential if we want to feel good and stay "sharp" long-term let's say.

Re:Workout.cool – Open-source fitness coaching platform on Thursday June 19, 2025 @06:35AM (#44317259)
Glad you liked the videos

And yes, you're totally right: having a searchable, complete list of exercises is something. We are working on it. The current experience is a bit too "filter-dependent" let's say and I want to make exploration more "flexible".

Thanks for the feedback it's definitely coming soon!

Re:Workout.cool – Open-source fitness coaching platform on Thursday June 19, 2025 @06:34AM (#44317250)
Thanks for the suggestion, yeap their resources are definitely solid for beginners

That said, I'm not sure how directly it would help in the context of Workout.cool, can you provide more context ?

Maybe when adding structured training plans? is that the kind of use case you had in mind?

Would love to hear how you think it could fit! Thanks

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @11:26PM (#44315178)
M'yeah... having clean, native workout animations would make the experience muchhhh smoother.

Right now, the videos are embedded from a partner app that kindly gave me permission to use them for this open-source project. I really wanted to avoid any gray areas around licensing or scraping/unapproved reuse.

The challenge is this: producing quality 3D exercise animations is very expensive often €10–20 per animation let's say, or thousands per month via "proper/serious" APIs. That's part of why it's so hard for open-source fitness tools to offer the same polish as commercial apps.

That said, I'd love (will?) to help kickstart a community-driven, open-licensed library of movement animations long-term something reusable by anyone building fitness tools. it's a REAL need.

Appreciate you bringing it

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @09:22PM (#44314634)
If you'd like to chat, ask questions, suggest features or just hang out with other fitness & dev folks

we’ve just opened a small Discord server: https://discord.gg/NtrsUBuHUB feel free to join!

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @08:44PM (#44314472)
not "really" let's say but we chose PostgreSQL mainly for scalability and flexibility long-term.

Features like JSONB, advanced filtering, full-text search, and complex joins are key to how we handle (-exercises specifically- but also user data, and routines in the future)

That said, I totally get the appeal of SQLite for quick local setups. I might add an experimental SQLite mode in the future for simple and/or personal use cases but for now, PostgreSQL is required to support the full feature set

Appreciate the interest (and open to suggestions on making setup smoother) :D

Cheers

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @06:10PM (#44313712)
Uh, sorry about that we got hit with a "surge of traffic" let's say (earlier).

It should be back to normal now! Mind giving it another try é_è?

Keep me posted !

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @04:43PM (#44313131)
> "ensure you stay in your max results zone"

lol true

Tbh that's exactly the gap Im trying to fill with Workout.cool. After reading all the feedback here (including yours), I've realized we need to make things even simpler and more beginner-friendly.

not some hyper-optimized tracker, but yeah a simple, open, and welcoming entry point into strength training. Got it. It's faaaar from perfect yet, but it's made with that intention at heart. Trust me !

Thanks again for your feedback mate.

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @04:38PM (#44313096)
Awesome, love seeing others exploring the same health/dev space!

FYI your link is bringing me to a Typeform (?) feel free to resend a link

For collaborating, yes i'd be up or even just bounce around ideas for future iterations.

I’ll shoot you an email soon so we can chat more

Would love to collaborate. In the meantime PRs are always welcome if you ever feel like contributing directly :D

Cheers!

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @04:33PM (#44313070)
Are you speaking about videos ? If yes, it comes from a partnership, and while it's allowed for use within this open-source project, it’s not automatically "sublicensable" let's say.

That said, if you’re interested, you can either:

Reach out directly to the partner for permission, or

Let me know more about your project idea, and I'd be happy to introduce you or ask on your behalf to see what's possible.

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @04:31PM (#44313057)
Thanks for the honest feedback.

Yeap ! Once that foundations are stable: introduce routine creation tools, ideally shaped with input from "real" trainers and a free "marketplace" to pick any workout session / program, provided by the community.

I guess we are aligned, lol :) Thanks again !

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @04:27PM (#44313027)
I love that idea making a "Lichess for Strava" lol.

I totally relate to your frustration so many basic features are paywalled on Strava (i paid...lol) and there's real room for a community-driven, open alternative. Can't encourage you more to continue !

I felt the same way when starting Workout.cool. On the old app, I realized a lot of people want open, transparent tools in the fitness (bodybuilding / weightlifting specially) space.

If you ever feel like picking it back up or want to brainstorm how pieces of what you built could plug into something broader I'd be super happy to chat?

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @04:22PM (#44312992)
Wow, Thanks a lot for taking the time to write this seriously. This kind of detailed feedback is incredibly valuable, especially at this early stage. Thanks !

So, yeah you're absolutely right: the exercise suggestion logic is very basic for now, and doesn't reflect proper programming principles (volume, movement patterns, recovery, compound/isolation balance, etc.). It’s more of a discovery tool than a real "smart" coach let's say. I probably need to make that clearer in the current UI.

To your specific points:

1. 33 exercises for a single session YES that's overkill, lol.

2. It currently just picks 3 per muscle group, with no upper cap or "contextual logic" let's say, and that'll change soon.

3. I'm already working to "categorize" the exercises by introducing metadata like compound/isolation, primary/secondary muscle groups, movement patterns, and tags for resistance "quality" let's say or "popularity".

4. I’m not sure I fully understood your expectation here. Do you mean you'd like to explicitly exclude certain machines or "types" of equipment, even if others are selected? (e.g. : "I have dumbbells and a pull-up bar, but please exclude all cable or machine-based exercises"). If so, that makes total sense. I'd love to clarify and improve that part of the UI. Thanks.

5. OK

6. Changing equipment doesn’t fully update the list : bug confirmed, I'll fix that. (For the moment yes you have to do it 2 time - render problem).

7. It's high on roadmap. You'll be able to fully edit your routine very soon.

Really appreciate the critique. No ego here I want this to be useful and respectful of good training principles. If you're ever up for helping shape that direction (even just high-level ideas), I'd love your input, what do you say?

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @04:10PM (#44312938)
great feedback and I agree that (i forgot tbh..) most beginners don't think in muscle groups, but in goals like "lose weight" "feel better", "beginner friendly", etc...

The goal is to make the app more welcoming by offering goal-based (or filters,let's see) entry points like "fat loss" "beginner full-body" or "3x/week routine" and not require anatomy knowledge to get started.

The muscle filter will just be one of many ways to browse, not a gatekeeper i guess. Thanks a lot for highlighting this!

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @04:05PM (#44312895)
database*
Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @02:23PM (#44312154)
Thanks mate.
Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @02:23PM (#44312151)
The videos currently embedded are "watermarked" and come from a partner app that granted permission to use them for this open-source project.

I wanted to make sure everything is legally safe and not just scraped or reused without rights.

Producing proper 3D exercise videos is actually VERY expensive we’re talking €10–20 per animation, or thousands of euros per month if you go through a good/high quality API provider. That’s why it's such a tough space for open-source tools to compete in.

Long-term, I'd love to help build a community-driven, open-licensed library of movement animations but until then, this partnership was the best balance between cost, legality, and quality.

Thanks for raising it

Re:Workout.cool – Open-source fitness coaching platform on Wednesday June 18, 2025 @02:19PM (#44312120)
Great question i definitely considered going fully client-side at first to avoid backend costs and "risks" lets say.

I choose to keep a server backend for a few key reasons:

- Centralized updates to the exercise database (videos, translations, attributes) without shipping a new frontend each time. (The goal is to have 5 to 10 new exercices per week)

- The ability to offer shared features like community workouts, saved routines, and (eventually) syncing across devices, etC...

Room to grow into more advanced features like progression tracking, public/privates APIs (strava, garmin, ...), and integrations all of which are much harder to manage purely client-side in my humble opinion.

Older »