2019-roadmap.md

+# Roadmap for 2019
+
 This page is part of #9032 and is under construction.
 
 Some initial ideas:
@@ -12,3 +14,9 @@ Some initial ideas:
 - Cleanup, define and apply code standards.
 - Integration with the platform (https://0xacab.org/leap/platform/issues/8854).
 - Add recovery code, eliminate shared db.
+
+## Integration of blobs into bitmask.mail (on demand download of message bodies).
+
+A client-encrypted blobs system was added to Soledad Client and Server mainly to solve two things: performance issues of crypto and network operations when dealing with large binary chunks of data, and the ability to control when this kind of data will be transferred.
+
+The first user of this system will be `bitmask.mail`, which implements an IMAP backend using Soledad traditional JSON-based documents. The application has to be modified to store email payloads as blobs, and to allow for on-demand downloading of email content.
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