Interestingly, it's the .xyz on our VM domain that causes problems. It's apparently far more of a problematic gTLD than I realized. E.g. it appears Southwest Airlines blocks the entire thing, as do some enterprise networks are working with.
(exe.dev co-founder here) The platform is designed make it easy for you to share if you like, but we are not typically in the business of pointing directly at products users make. Maybe we should change that! It would be fun to have a "best of exe.dev" on our site.
If you have a good local VM flow that’s great. I couldn’t make it work for me. I ended up needing it to run when my laptop was shut, both as an agent and the servers I am building.
It’s a real tension, working with a remote dev env has never been my first choice. But agents seem to tip the balance enough in favor of remote that I have switched.
I think it’s worth trying. There’s a lot of value in having the agent in the box. You can give it root so it can do something like tcpdump unsupervised. And if you happen to build a new server, you can keep it serving indefinitely. That’s the whole motivation behind exe.dev.
For those looking to run agents: the short lifecycle of the typical “sandbox” seems surprisingly limiting to me. I have no actual workflow where I want one of these products. Sometimes a VM can live for 30 minutes, but it also might need to live for a month, and I don’t know beforehand.
This is why I have been avoiding the word sandbox for exe.dev. I don’t think developers agents need something “sandbox” shaped.
This is the nature of large institutions: they have to distrust their own people. You cannot be relied on to act well, you must be checked first.
There is a good reason for this! In a large group of people, there are bad people.
This is also why I am done working at large companies. I learned a lot, met some great people, but am uninterested in a low trust environment. I like relying on my colleagues. When they do something unexpected, I am surprised and study it to learn, not lambast.
My eight year old found a Terry Pratchett book of mine on the shelf the other day. He is a little too young to read them today but I realized I get to enjoy Pratchett all over again through him.
Nah. There are billions of people on the internet, and it varies from a dusty library to Atlantic City (though for some reason we let kids into the casino?). It is not one thing any more, but there are plenty of fun corners.
I could type ~four lines and an alert box response from a visual form.
For years I have lamented the amount of paperwork necessary in most of modern programming to get things done. I don't know how important that is now that I have a machine fill out the paperwork. It would still be better if there was less fuss.
exe.dev | full time member of technical staff | sf bay area only
competitive salary, meaningful early equity, 2 days a week in the downtown sf office
come build a cloud. we are doing everything from custom hardware to custom ssh servers to our own global load balancer. very senior small high-trust team looking for someone we can rely on to get done whatever is most important in the stack for the business. some days that means patch the vmm. other days it means figure out passkey quirks.
Our exe.dev web UI still runs on AWS. We also have a few users left on our VM hosts there, as when we launched in December we were considering building on AWS. Now almost all customer VMs are on other bare metal providers or machines we are racking ourselves. We built our own GLB with the help of another vendor's anycast network. You can see that if you try any of the exe.xyz names generated for user VMs.
We would move exe.dev too, but we have a few customers who are compliance sensitive going through it, so we need to get the compliance story right with our own hardware before we can. It is a little annoying being tied to AWS just for that, but very little of our traffic goes through them, so in practice it works.
I need to fix our transfer pricing. (In fact I'm going to go look at it now.) I set that number when we launched in December, and we were still considering building on top of AWS, so we put a conservative limit based on what wouldn't break the bank on AWS. Now that we are doing our own thing, we can be far more reasonable.
Almost every VC rejected us when we went to get seed funding for Tailscale, we knew none of them. Friends of friends of acquaintances got us meetings. Fundraising is very possible for you if you are committed to building a business. Most important thing is don't think of fundraising as the goal, it is just a tool for building a business. (And some businesses don't need VC funding to work. Some do.)
The biggest challenge is personal: do you want to build a business or do you want to work with cool tech? Sometimes those goals are aligned, but usually they are not. Threading the needle and doing both is difficult, and you always have to prioritize the business because you have to make payroll.
Author here. Most of our infra is custom, the VMM is based on cloud-hypervisor (a project spiritually similar to Firecracker). We have a lot of work to do, including on the VMM, but right now there is more value for users if we spend our time on the VM management layer and GLB.
Based on this and recent product releases, Anthropic seems keen on building a closed ecosystem around their excellent model. That is their business choice, I suspect it will work well. But I cannot say I am particularly excited to have my entire development stack owned by one company.
You can get this effect today by installing Tailscale on your exe.dev VM. :)
The reason we put so much effort into exposing these publicly is for sharing with a heterogeneous team without imposing a client agent requirement. The web interface should be easy to make public, easy to share with friends with a Google Docs-style link, and ssh should be easy to share with teammates.
That said, nothing wrong with installing tunneling software on the VM, I do it!
https://crawshaw.io https://x.com/davidcrawshaw https://tailscale.com
[ my public key: https://keybase.io/crawshaw; my proof: https://keybase.io/crawshaw/sigs/pAgPRWvnavoaN-xWVU1tNio7o50gsLZVH3FgdyLeu9M ]