Deputy might be a bit more popular than Skyscanner. We know about 2 links to it since March 2021 and only 2 links to Skyscanner. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I use https://skyscanner.com/ I like the less invasive interface and prices are good. - Source: Hacker News / 10 months ago
Agree with all of that. Though with flights, you can also optimize a lot if you have enough lead time: I recommend https://skyscanner.com/ Trains are nice if you need to transport anything of volume, if you stay longer than a day or two so you can amortize the travel time, if you have lots of run-up time, and probably cheaper if you travel a lot. They're definitely competitive, it's just not a slamdunk, and planes... - Source: Hacker News / about 2 years ago
A quick search yielded https://wheniwork.com/l/employee-scheduling and https://deputy.com. Not self hosted but seem like they would fit your needs. The latter might cost but I guess you can reach out to them for non-profit discounts perhaps. Source: over 1 year ago
Use deputy.com and switch to all breaks are unpaid. Clock off for any break longer than short toilet break. Source: over 2 years ago
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