Custom cloud storage, with the upload engineering already solved.
We've shipped a cloud-storage product with 5GB resumable chunked uploads, password-protected shares, revocable links, full audit logging, and S3 / Wasabi compatible backends. If you want a custom Drive — for compliance, sovereignty, or pricing reasons — these are the moving parts.
A production-grade drive module already built and running. We ship a custom one for clients who need their own.
ragenaizer.com / driveWhat goes inside a real drive.
These are the moving parts we've shipped before. Your custom build picks a subset — and we tell you upfront which parts are worth re-implementing and which ones aren't.
Resumable chunked upload
Multipart + chunk-resume so a 5GB file survives a flaky network. Network drops, you resume from the last chunk.
Encrypted at rest
AES-256 server-side; envelope encryption with per-tenant keys. Hardware-backed KMS where available.
Revocable links
Share, set expiry, set download cap, set password. Revoke or rotate after issuing — no need to delete the file.
Audit trail
Who viewed, who downloaded, when, from which IP. Exportable. Required for HIPAA / SOC2 / DPDP audits.
Versioning
Roll back to any prior version. Configurable retention windows.
S3 / Wasabi / MinIO compatible
Bring-your-own object store. No vendor lock-in on the data plane.
Presigned URLs
Direct browser-to-bucket uploads so files never traverse your application server.
Granular ACLs
Per-file, per-folder, per-group. Inheritance with explicit overrides.
The problems that don't show up in the demo.
These are the ones that take a custom build from "works in a screenshot" to "works in production for three years." We've already learned them once.
- 01 Resumable upload protocol — the client side needs idempotent chunk identifiers, the server needs to garbage-collect orphaned chunks.
- 02 Multi-tenant key management — each tenant's data encrypted with their own key, key material never crosses tenant boundaries.
- 03 Quota accounting in near-real-time across hundreds of thousands of files per tenant.
- 04 Antivirus / DLP on upload without blocking the user — async scanning with quarantine on bad hits.
- 05 Cold-storage tiering when files haven't been accessed in 90+ days — without breaking share links.
How we'd put it together.
ASP.NET Core for the control plane, S3-compatible object storage for the data plane (Wasabi / MinIO / Backblaze B2 are all fine), Postgres for metadata, Redis for presigned URL minting. Optional virus-scan worker.
We'll tell you when not to build.
Custom isn't always the right call. We've shipped Ragenaizer so we can say that honestly.
- →The drive is the moat — your competitor can't have the same one.
- →You have compliance / sovereignty / data-residency requirements no SaaS will satisfy.
- →You need to integrate at a level deeper than off-the-shelf vendors expose.
- →Per-seat pricing across thousands of users makes the build cheaper inside 24 months.
- →The workflow is generic enough that a configurable platform will do.
- →You want it in weeks, not quarters.
- →You'd rather buy than own — let someone else maintain the drive forever.
- →Your engineering capacity should go to the parts of your product that no SaaS covers.
Custom drive? Tell us what you need.
One conversation. We tell you whether it's a custom build, a Ragenaizer rollout, or something we shouldn't take on.