Show HN: Paca – Lightweight Jira alternative for human-AI collaboration

109 points - today at 9:44 AM


I built Paca out of pure passion—a free and lightweight Jira alternative written in Go where humans and AI agents work together as equal teammates to plan sprints and assign tasks to each other. It is fully customizable with custom views, fields, and a WASM-based plugin architecture. My team uses it daily for our own development, so it will be continuously maintained and completely free forever

Source

Comments

e12e today at 6:18 PM
I guess everyone uses 20% percent of Jira - just a different 20% ... [1]

We're using GitHub for everything here, but was using Jira as an email first helpdesk.

Was hoping this was that - but apparently not at all.

We almost went with libredesk - but it's a little too simple (no merging tickets?). We're giving FreeScout a go - looks like we might need the oauth2 plugin to work with o365 mail ...

[1] https://www.joelonsoftware.com/2001/03/23/strategy-letter-iv...

> A lot of software developers are seduced by the old “80/20” rule. It seems to make a lot of sense: 80% of the people use 20% of the features. So you convince yourself that you only need to implement 20% of the features, and you can still sell 80% as many copies.

> Unfortunately, it’s never the same 20%. Everybody uses a different set of features.

-- Joel Splosky

eranation today at 6:10 PM
Thanks for having a security policy

https://github.com/Paca-AI/paca/security

However I'm getting a 404

https://github.com/Paca-AI/paca/security/advisories/new

(You need to enable private security advisories: https://docs.github.com/en/code-security/how-tos/report-and-..., really not sure why GitHub made it opt-in only)

dagss today at 12:26 PM
What are people's workflows these days?

As I use claude more and more I've started using git worktrees, one branch per worktree per PR, with possibly multiple agents working in each worktree at the same time on different aspects. And I manually instruct those agents. Like Emdash/Cursor/Zed. Sometimes I review code locally, sometimes agents push and I review in GitHub, no clear system yet. (jj seems promising, but Zed doesn't seem to support jj as well as git, so have delayed looking at it.)

But Paca is hinting in another direction where the agents are more in control of the branches/worktrees to use and are created by the agent? What tooling is used to support such flows? Would people use GitHub with Paca or is GitHub redundant as well.

_pdp_ today at 2:24 PM
You can take it a step further and strip out the frontend. Honestly. Nobody needs it and if you need any UI stuff it in the MCP.

This is what I did with this project https://github.com/crmkit/crmkit/ and to be honest the approach grows on me and fits well if you are a backend person.

mrbluecoat today at 6:22 PM
Could have called it AIpaca, since many fonts would make it look like Alpaca.
tom-wal today at 2:28 PM
I can't believe you guys give this for free. I was considering buying "Linear", now I just saved 10$/month with this. Thank you so much
sambucini today at 12:09 PM
I've been trying keeping an eye on open source issue trackers/project managament tools I can self-host -- with good cli/mcp capabilities. So quite happy to see this as I feel there isn't a lot! (currently also using gh issues) will check it out!
kamikazechaser today at 10:58 AM
Specifically on the AI side, how does it compare to beads?
Jgrubb today at 5:28 PM
Feels like it's geared toward actually enabling the "dark factory", which is pretty difficult with enterprisey, seat based SaaS like GitHub and Jira. Will definitely check this out.
zpusmani today at 5:56 PM
When an agent and a human disagree on priority, who wins... is there an override, a queue or some kind of arbitration?
crossroadsguy today at 11:16 AM
People who like Jira (or rather want; I doubt one ever “needs” this thing), and make decisions on its implementation and payment, and force it on others, are not the people who are shopping for alternatives. So who these alternatives are really for?
eisbaw today at 12:08 PM
Backlog.md the project: tasks live in your repo, atomic and race free
hmokiguess today at 10:44 AM
I'm using GitHub issues and GitHub Projects with `gh` cli and I find it works well, though what I really like about this is your project level chat. I find myself having to come back to a project level session often. May give this a try, just hesitant to put it on something that's in-flight with already lots of stuff, will have to be a net new project.
verdverm today at 6:35 PM
We're using `twg` to give agents access to Jira et al via a CLI

https://www.atlassian.com/platform/teamwork-graph

Their skills abuse your context window and billing, you'll want to write your own for the 20% you use

Tsarp today at 11:03 AM
Awesome to see this. Like a few others here, I hand-rolled (well, Codex-rolled) something similar that works great for me. I keep going back and forth on open-sourcing it, but my hunch is people won't really adopt these kinds of things anyway.

Everyone ends up with a workflow shaped really tightly around how they work, and it's gotten so cheap to just build and evolve your own as the models and harnesses change that picking up someone else's stops making much sense.

smrtinsert today at 6:26 PM
I think this is capturing the current need - solo vibe engineers that need structured task tracking. Since I pop between machines for various reasons, I tend to keep this info in the project itself, but an MCP server could go a long way. Tracking this project
aynite today at 12:37 PM
Was thinking about building something similar, thanks for sharing.

Glad to I'm not the only one thinking about moving away from Jira

reactordev today at 12:20 PM
This couldn’t have come at a better time!! This is exactly what I was going to build next now that my agent swarm is done.
kolinko today at 10:39 AM
Thanks for open-sourcing this! I built something similar for myself, but after few months it's so personalised that it's in no shape to be open-sourced.
aniokono today at 11:06 AM
In my mind Jira is gone, glad to see others are thinking in the same direction.

Where does Jira really sit in a world eaten up by vibecoding?

deleted today at 3:36 PM
RajX-dev today at 3:00 PM
great work , i love the ui and the smoothness is cherry on cake.
pavelpilyak today at 5:26 PM
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Lidro today at 2:34 PM
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volume_tech today at 1:03 PM
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