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calcom
cal.diy
TypeScript2022–2026
calcom / cal.diy

cal.diy

Scheduling infrastructure for absolutely everyone.

19Distinct people
24Mentions
1Explicit recommenders
50KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Scheduling infrastructure for absolutely everyone.

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

as a fellow bootstrapped founder, hats off to the NeetoCal team I'm personally using Cal.com, it's free and I'm very happy. I'm also very biased because we interviewed the…

zcesur used a recommendation phrase. One indexed comment matches. This is a phrase match, not a verdict.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:03:16 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year24 dated mentions

Observed mentions: 2022-02-11 13:18:47 UTC to 2026-04-22 06:29:16 UTC.

0369122022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 5 mentions; 0 submissions, 5 comments20222023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 11 mentions; 1 submissions, 10 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 5 mentions; 1 submissions, 4 comments20242025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2026-01-01 00:00:00 UTC to 2027-01-01 00:00:00 UTC (exclusive): 2 mentions; 1 submissions, 1 comments. Incomplete calendar period.2026*

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC505
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC11110
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC514
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC101
2026 (partial)2026-01-01 00:00:00 UTC2027-01-01 00:00:00 UTC211

What Hacker News says

24 sources
> C# culture is closer to enterprise Java than it is to Typescript I mean, this really depends on what you're looking at. Here's a sample from the MongoDB client: https://github.com/mongodb/node-mongodb-native/blob/main/src... Here's a sample from Storybook: https://github.com/storybookjs/storybook/blob/next/code/core... Here's a sample from Prisma: https://github.com/prisma/prisma/blob/main/packages/client/s... Here's a sample from Cal.com: https://github.com/calcom/cal.com/blob/main/packages/core/Ev... These are all fairly mainstream repos so it's not a one off to see "enterprise" style coding in TypeScript. It's rather the specific use case that determines the style of the code that's written. In the examples above, there's no need for the teams to choose JavaScript classes and inheritance to model the logic, yet it likely better fit
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s the programming model of those modules. Look at Nest.js as well: https://github.com/nestjs/nest/blob/master/packages/core/rou... The whole codebase of Nest.js looks an awful lot like Spring or ASP.NET (controller syntax) probably because there's a lot of crossover in terms of what APIs need at scale and how to logically organize that logic. It just so happens that most use cases for C# and Java favor applications at a larger scale. Another key difference being object scope and lifecycles -- something that rarely comes into play in the generally single-threaded Node runtime. This being one of the key reasons why dependency injection is a thing in C# and Java land.
In What's New in F# 9
I'm not sure I personally agree with this, and I'm not 100% sure the developer community at-large does either... Let's take a few examples, which I've shared elsewhere in similar discussions: - GitLab: Open Source or Open Core? Most would say open source, but (I assume) you would argue open core [0]. - Plausible: Open Source or Open Core? They say open source, but it's actually open core [1]. - Cal.com: Open Source or Open Core? They say open source, but once again, open core [2]. - Posthog: Open Source or Open Core? They say open source, but actually open core [3]. - Sidekiq: Open Source or Open Core? Open... core [4]. Yet, every dev I know would consider these projects Open Source... and yet also Open Core. So there's a disconnect somewhere. Under this mindset, very few open source startups are actually open source, yet everybody says t
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In Going open-source as a VC-Backed company
hzia·Aug 7, 2023Submission

Launch HN: GitStart (YC S19) – Remote junior devs working on production PRs

Hi HN, I’m Hamza from GitStart (https://gitstart.com/). We’re building a service for engineering teams to assign tickets and get back PRs. Here’s a video of how it works: https://www.loom.com/share/61d46a5b07e04b45a51af2a5008ee173 We recruit devs who want to grow from remote countries, to work full-time on these tickets and review each other’s PRs. For tech teams it’s pay as you go, and they only pay if they merge the PRs (we pay our devs a base regardless). GitStart is very personal to me because I struggled myself to start my career as a junior dev. Being born in Pakistan made it super hard to find my first remote job. Things changed with Google Summer of Code, which was the first time I got paid to contribute to a large production codebase. When I became a staff engineer, I started mentoring junior devs on their solo projects. I then
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realized what they really needed was production code experience, so I started sending them tickets from my backlog to grow them through code reviews. I also paid them for it. They learned a lot and I got a lot done, which started GitStart. That’s why, in the description above, we say “devs who want to grow”. This is key to what we do—we are not just a body shop or middleman, and we don’t charge by the hour. We provide useful mentorship to junior devs. We want to be a meaningful part of their career path. Our thesis (to use that slightly pretentious word) is that the economics work better this way as well. There is a lot of junior dev talent in these countries whose potential will bever be realized by hourly piecework. What’s needed are longer term relationships and work engagements, over the course of which a junior dev can learn and grow on a large production codebase. Much of this has to do with learning the culture of effective tech teams. On the other side, effective tech teams don’t want hourly piecework either. Clients tell us they love having developers dedicated to their project, becoming more familiar with the code over time. This is the way for value to be maximized on both sides. A number of commercial open source repos already use us, so you can check out some of the PRs created by GitStart here: Cal.com: https://github.com/calcom/cal.com/pulls?q=is%3Apr+author%3Ag... SourceGraph: https://github.com/sourcegraph/sourcegraph/pulls?q=is%3Apr+a... StoryBooks: https://github.com/storybookjs/storybook/pulls?q=is%3Apr+aut... Strapi: https://github.com/strapi/strapi/pulls?q=is%3Aclosed+is%3Apr... Supabase: https://github.com/supabase/supabase/pulls?q=is%3Apr+author%... Twenty: https://github.com/twentyhq/twenty/pulls?q=is%3Apr+author%3A... Our main technical challenge has been securing code sharing. One solution was building GitSlice, which enables creating sub-repos that sync with the upstream repo. When GitStart devs create PRs on the platform, GitSlice syncs them upstream while pulling back CI/CD checks and review comments. This enables our devs to contribute with limited codebase access. To prevent slices from breaking, we verify they run within a docker container, which also enables us to build review environments. Fun fact: we managed to support native iOS and Android codebases by building and running them on appetize.io instead of docker. There have been countless attempts at this space so we would love to hear your feedback on how we approached this problem or your past experiences working with junior devs in this way. We look forward to a good conversation!
235 points · Open discussion
zcesur·Jul 19, 2023Recommendation phrase
as a fellow bootstrapped founder, hats off to the NeetoCal team I'm personally using Cal.com, it's free and I'm very happy. I'm also very biased because we interviewed the co-founder/co-ceo [1] and Cal.com uses our platform to reward its open source contributors [2] what I love most about Cal is how young developers from around the world learn modern tech by contributing (and getting trained by the team) [3], support is crazy good [4] and the company builds in public, even their salaries and metrics are open [5]. I cannot not be a fan honestly [1] https://youtu.be/gymNEH-skAY [2] https://algora.io/org/cal [3] https://github.com/calcom/cal.com/pulls [4] https://discord.gg/NPDU8fhJ [5] https://cal.com/open
In NeetoCal, a calendly alternative, is a commodity and is priced accordingly

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