I tried it (really like the API design) but ran into a blocker:
uv run --with localsandbox python -c '
from localsandbox import LocalSandbox
with LocalSandbox() as sandbox:
result = sandbox.bash("echo hi")
print(result.stdout)
'
Gave me:
Traceback (most recent call last):
File "<string>", line 5, in <module>
result = sandbox.bash("echo hi")
File "/Users/simon/.cache/uv/archive-v0/spFCEHagkq3VTpTyStT-Z/lib/python3.14/site-packages/localsandbox/core.py", line 492, in bash
raise SubprocessCrashed(
...<2 lines>...
)
localsandbox.exceptions.SubprocessCrashed: Node subprocess crashed: error: Failed reading lockfile at '/Users/simon/.cache/uv/archive-v0/spFCEHagkq3VTpTyStT-Z/lib/python3.14/site-packages/localsandbox/shim/deno.lock'
Caused by:
Unsupported lockfile version '5'. Try upgrading Deno or recreating the lockfile
Actually that was with Deno 2.2.10 - I ran "brew upgrade deno" and got Deno 2.6.7 and now it works!
It looks like it currently defaults to allowing networking so it can load Pyodide from npm. My preference is a sandbox with no network access at all and access only to specific files that I can configure.
One nice thing about using AgentFS as the VFS is that it's backed by sqlite so it's very portable - making it easy to fork and resume agent workflows across machines / time.
I really like Amla Sandbox addition of injecting tool calls into the sandbox, which lets the agent generated code interact with the harness provided tools. Very interesting!
CoPlane (https://coplane.com/) | Design Engineer | NYC or Remote (North America) | Full Time
The world doesn't need another ERP. CoPlane is building the Agentic Orchestration platform that enables enterprises to orchestrate intelligent processes across their existing systems. Founded by ex-Stripe/Segment product and tech leads, we're changing how businesses operate their backoffice - helping them scale intelligence not headcount.
We're looking for an exceptional design engineer to grow our small team of engineers that include ex-founders, open source contributors (authors of neovim and neverthrow), and architects of petabyte-scale data platforms. You'll work with billion-dollar enterprises solving their hardest, most mission-critical automation problems.
If you're excited about working at the nexus of data, automation and AI, and want to make a significant impact in an early, well-capitalized startup with large enterprise design partners, we'd love to hear from you.
CoPlane (https://coplane.com/) | Product/Design Engineer + Designer | NYC or Remote (North America) | Full Time
The world doesn't need another ERP. CoPlane is building the Agentic Orchestration platform that enables enterprises to orchestrate intelligent processes across their existing systems. Founded by ex-Stripe/Segment product and tech leads, we're changing how businesses operate their backoffice - helping them scale intelligence not headcount.
We're looking for exceptional engineers to grow our small founding team of engineers that include ex-founders, open source contributors (authors of neovim and neverthrow), and architects of petabyte-scale data platforms. You'll work with billion-dollar enterprises solving their hardest, most mission-critical automation problems.
If you're excited about working at the nexus of data, automation and AI, and want to make a significant impact in an early, well-capitalized startup with large enterprise design partners, we'd love to hear from you.
CoPlane (https://coplane.com/) | Product/Design Engineer + Designer | Remote (North America) or NYC | Full Time
The world doesn't need another ERP. CoPlane is building the Agentic Orchestration platform that enables enterprises to orchestrate intelligent processes across their existing systems. Founded by ex-Stripe/Segment product and tech leads, we're changing how businesses operate their backoffice - helping them scale intelligence not headcount.
We're looking for exceptional engineers to grow our small founding team of engineers that include ex-founders, open source contributors (authors of neovim and neverthrow), and architects of petabyte-scale data platforms. You'll work with billion-dollar enterprises solving their hardest, most mission-critical automation problems.
If you're excited about working at the nexus of data, automation and AI, and want to make a significant impact in an early, well-capitalized startup with large enterprise design partners, we'd love to hear from you.
CoPlane (https://coplane.com/) | Infra (BYOC) Platform Eng and Product/Design Engineer | Remote (North America) or NYC | Full Time
The world doesn't need another ERP. CoPlane is building the Agentic Orchestration platform that enables enterprises to orchestrate intelligent processes across their existing systems. Founded by ex-Stripe/Segment product and tech leads, we're changing how businesses operate their backoffice - helping them scale intelligence not headcount.
We're looking for exceptional engineers to grow our small founding team of engineers that include ex-founders, open source contributors (authors of neovim and neverthrow), and architects of petabyte-scale data platforms. You'll work with billion-dollar enterprises solving their hardest, most mission-critical automation problems.
If you're excited about working at the nexus of data, automation and AI, and want to make a significant impact in an early, well-capitalized startup with large enterprise design partners, we'd love to hear from you.
Roles: Platform Engineer (Infra), and Product/Design Engineer.
CoPlane (https://coplane.com/) | Founding Software Engineers | Remote (US/CAN Timezones) | Full Time
The world doesn't need another ERP. CoPlane is building the Agentic Orchestration platform that enables enterprises to orchestrate intelligent processes across their existing systems. Founded by ex-Stripe/Segment product and tech leads, we're changing how businesses operate their backoffice - helping them scale intelligence not headcount.
We're looking for exceptional engineers to grow our small founding team of engineers that include ex-founders, open source contributors (authors of neovim and neverthrow), and architects of petabyte-scale data platforms. You'll work with billion-dollar enterprises solving their hardest, most mission-critical automation problems.
If you're excited about working at the nexus of data, automation and AI, and want to make a significant impact in an early, well-capitalized startup with large enterprise design partners, we'd love to hear from you.
Roles: Platform Engineer (Infra), Product Engineer and Forward Deployed AI Engineer.
CoPlane (https://coplane.com/) | Founding Software Engineers | Remote (US/CAN Timezones) | Full Time
The world doesn't need another ERP. CoPlane is building the Agentic Orchestration platform that enables enterprises to orchestrate intelligent processes across their existing systems. Founded by ex-Stripe/Segment product and tech leads, we're changing how businesses operate their backoffice - helping them scale intelligence not headcount.
We're looking for exceptional engineers to grow our small founding team of engineers that include ex-founders, open source contributors (authors of neverthrow and neovim), and architects of petabyte-scale data platforms. You'll work with billion-dollar enterprises solving their hardest, most mission-critical automation problems.
If you're excited about working at the nexus of data, finance and AI, and want to make a significant impact in an early, well-capitalized startup with large enterprise design partners, we'd love to hear from you.
Roles: Platform Engineer, Product Engineer and Forward Deployed AI Engineer.
Overall Zed is super nice and opposite of janky, but still found a few of defaults were off and Python support still was missing in a few key ways for my daily workflow.
CoPlane (https://coplane.com/) | Founding Software Engineers | Remote (US Timezones) | Full Time
CoPlane is building the data plane for trusted trade, deploying Stripe-caliber data and financial infrastructure for US industrial leaders. Founded by ex-Stripe/Segment product and tech leads, we're modernizing supply chain finance starting with AP automation.
We're looking for exceptional, agentic engineers to join our founding team. You'll work on mission-critical systems that will reshape how global enterprises manage their finances and supply chains.
If you're excited about working at the nexus of data and finance, and want to make a significant impact in an early, well-capitalized startup with large enterprise design partners, we'd love to hear from you.
