nodejs: lazy per-backend libsimplex download (#7543)

* ci: drop dlltool from nodejs libs release

* nodejs: download libsimplex into the user cache

* nodejs: load libsimplex at runtime per backend

* support bot: select db backend with --db

* python: match backend switch error text

* nodejs: download prebuilt add-on at runtime

* ci: build nodejs add-on for libs release

* calculator bot: load libs and add-on in image

* support bot: document add-on override

* nodejs: keep worker test output free of colors

* nodejs: verify sha-256 of downloaded assets

* python: pin core libs release with sha-256

* ci: add packages release script

* ci: release nodejs add-on and open release PR

* ci: publish packages after release PR

* nodejs: keep npm from building the add-on

* calculator bot: build the add-on in the image

* ci: merge package release workflows

* ci: open release PR when publishing fails

* ci: build the add-on with node-addon-api only

* ci: skip publishing in a called packages workflow

* ci: update package release actions to Node 24

* nodejs: fix receive test timeout

* ci: test packages on pull requests

* nodejs: reuse the database in the close stress test

* ci: keep failed package tests from hanging

* ci: skip preset server tests

* ci: plan package builds from the changes

* ci: test packages with a given libsimplex

* ci: test packages with libsimplex of core changes

packages/simplex-chat-nodejs/docs/Namespace.core.md

@@ -32,6 +32,7 @@ You are unlikely to ever need to use this module directly.
 
 ## Type Aliases
 
+- [Backend](core.TypeAlias.Backend.md)
 - [DBMigrationError](core.TypeAlias.DBMigrationError.md)
 - [MigrationError](core.TypeAlias.MigrationError.md)
 - [MTRError](core.TypeAlias.MTRError.md)
@@ -46,3 +47,4 @@ You are unlikely to ever need to use this module directly.
 - [chatRecvMsgWait](core.Function.chatRecvMsgWait.md)
 - [chatSendCmd](core.Function.chatSendCmd.md)
 - [chatWriteFile](core.Function.chatWriteFile.md)
+- [loadLibrary](core.Function.loadLibrary.md)

packages/simplex-chat-nodejs/docs/api.Class.ChatApi.md

@@ -6,7 +6,7 @@
 
 # Class: ChatApi
 
-Defined in: [src/api.ts:97](../src/api.ts#L97)
+Defined in: [src/api.ts:95](../src/api.ts#L95)
 
 Main API class for interacting with the chat core library.
 
@@ -16,7 +16,7 @@ Main API class for interacting with the chat core library.
 
 > `protected` **ctrl\_**: `bigint` \| `undefined`
 
-Defined in: [src/api.ts:103](../src/api.ts#L103)
+Defined in: [src/api.ts:101](../src/api.ts#L101)
 
 ## Accessors
 
@@ -26,7 +26,7 @@ Defined in: [src/api.ts:103](../src/api.ts#L103)
 
 > **get** **ctrl**(): `bigint`
 
-Defined in: [src/api.ts:344](../src/api.ts#L344)
+Defined in: [src/api.ts:343](../src/api.ts#L343)
 
 Chat controller reference
 
@@ -42,7 +42,7 @@ Chat controller reference
 
 > **get** **initialized**(): `boolean`
 
-Defined in: [src/api.ts:330](../src/api.ts#L330)
+Defined in: [src/api.ts:329](../src/api.ts#L329)
 
 Chat controller is initialized
 
@@ -58,7 +58,7 @@ Chat controller is initialized
 
 > **get** **started**(): `boolean`
 
-Defined in: [src/api.ts:337](../src/api.ts#L337)
+Defined in: [src/api.ts:336](../src/api.ts#L336)
 
 Chat controller is started
 
@@ -72,7 +72,7 @@ Chat controller is started
 
 > **apiAcceptContactRequest**(`contactReqId`): `Promise`\<`Contact`\>
 
-Defined in: [src/api.ts:750](../src/api.ts#L750)
+Defined in: [src/api.ts:770](../src/api.ts#L770)
 
 Accept contact request.
 Network usage: interactive.
@@ -93,7 +93,7 @@ Network usage: interactive.
 
 > **apiAcceptMember**(`groupId`, `groupMemberId`, `memberRole`): `Promise`\<`GroupMember`\>
 
-Defined in: [src/api.ts:570](../src/api.ts#L570)
+Defined in: [src/api.ts:590](../src/api.ts#L590)
 
 Accept group member. Requires Admin role.
 Network usage: background.
@@ -122,7 +122,7 @@ Network usage: background.
 
 > **apiAddMember**(`groupId`, `contactId`, `memberRole`): `Promise`\<`GroupMember`\>
 
-Defined in: [src/api.ts:550](../src/api.ts#L550)
+Defined in: [src/api.ts:560](../src/api.ts#L560)
 
 Add contact to group. Requires bot to have Admin role.
 Network usage: interactive.
@@ -147,11 +147,44 @@ Network usage: interactive.
 
 ***
 
+### apiAddMemberViaGroup()
+
+> **apiAddMemberViaGroup**(`groupId`, `viaGroupId`, `groupMemberId`, `memberRole`): `Promise`\<`GroupMember`\>
+
+Defined in: [src/api.ts:570](../src/api.ts#L570)
+
+Add member of another group to group. Requires bot to have Admin role in the group, and direct messages allowed for its role in another group.
+Network usage: interactive.
+
+#### Parameters
+
+##### groupId
+
+`number`
+
+##### viaGroupId
+
+`number`
+
+##### groupMemberId
+
+`number`
+
+##### memberRole
+
+`GroupMemberRole`
+
+#### Returns
+
+`Promise`\<`GroupMember`\>
+
+***
+
 ### apiBlockMembersForAll()
 
 > **apiBlockMembersForAll**(`groupId`, `groupMemberIds`, `blocked`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:590](../src/api.ts#L590)
+Defined in: [src/api.ts:610](../src/api.ts#L610)
 
 Block members. Requires Moderator role.
 Network usage: background.
@@ -180,7 +213,7 @@ Network usage: background.
 
 > **apiCancelFile**(`fileId`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:540](../src/api.ts#L540)
+Defined in: [src/api.ts:550](../src/api.ts#L550)
 
 Cancel file.
 Network usage: background.
@@ -201,7 +234,7 @@ Network usage: background.
 
 > **apiChatItemReaction**(`chatType`, `chatId`, `chatItemId`, `add`, `reaction`): `Promise`\<`ACIReaction`\>
 
-Defined in: [src/api.ts:513](../src/api.ts#L513)
+Defined in: [src/api.ts:523](../src/api.ts#L523)
 
 Add/remove message reaction.
 Network usage: background.
@@ -238,7 +271,7 @@ Network usage: background.
 
 > **apiConnect**(`userId`, `incognito`, `preparedLink`): `Promise`\<[`ConnReqType`](api.Enumeration.ConnReqType.md)\>
 
-Defined in: [src/api.ts:719](../src/api.ts#L719)
+Defined in: [src/api.ts:739](../src/api.ts#L739)
 
 Connect via prepared SimpleX link. The link can be 1-time invitation link, contact address or group link
 Network usage: interactive.
@@ -267,7 +300,7 @@ Network usage: interactive.
 
 > **apiConnectActiveUser**(`connLink`): `Promise`\<[`ConnReqType`](api.Enumeration.ConnReqType.md)\>
 
-Defined in: [src/api.ts:728](../src/api.ts#L728)
+Defined in: [src/api.ts:748](../src/api.ts#L748)
 
 Connect via SimpleX link as string in the active user profile.
 Network usage: interactive.
@@ -288,7 +321,7 @@ Network usage: interactive.
 
 > **apiConnectPlan**(`userId`, `connectionLink`): `Promise`\<\[`ConnectionPlan`, `CreatedConnLink`\]\>
 
-Defined in: [src/api.ts:709](../src/api.ts#L709)
+Defined in: [src/api.ts:729](../src/api.ts#L729)
 
 Determine SimpleX link type and if the bot is already connected via this link.
 Network usage: interactive.
@@ -313,7 +346,7 @@ Network usage: interactive.
 
 > **apiCreateActiveUser**(`profile?`): `Promise`\<`User`\>
 
-Defined in: [src/api.ts:887](../src/api.ts#L887)
+Defined in: [src/api.ts:907](../src/api.ts#L907)
 
 Create new user profile
 Network usage: no.
@@ -334,7 +367,7 @@ Network usage: no.
 
 > **apiCreateGroupLink**(`groupId`, `memberRole`): `Promise`\<`string`\>
 
-Defined in: [src/api.ts:650](../src/api.ts#L650)
+Defined in: [src/api.ts:670](../src/api.ts#L670)
 
 Create group link.
 Network usage: interactive.
@@ -359,7 +392,7 @@ Network usage: interactive.
 
 > **apiCreateLink**(`userId`): `Promise`\<`string`\>
 
-Defined in: [src/api.ts:696](../src/api.ts#L696)
+Defined in: [src/api.ts:716](../src/api.ts#L716)
 
 Create 1-time invitation link.
 Network usage: interactive.
@@ -380,7 +413,7 @@ Network usage: interactive.
 
 > **apiCreateMemberContact**(`groupId`, `groupMemberId`): `Promise`\<`Contact`\>
 
-Defined in: [src/api.ts:953](../src/api.ts#L953)
+Defined in: [src/api.ts:973](../src/api.ts#L973)
 
 Create a direct message contact with a group member.
 Returns the created contact.
@@ -406,7 +439,7 @@ Network usage: interactive.
 
 > **apiCreateUserAddress**(`userId`): `Promise`\<`CreatedConnLink`\>
 
-Defined in: [src/api.ts:361](../src/api.ts#L361)
+Defined in: [src/api.ts:360](../src/api.ts#L360)
 
 Create bot address.
 Network usage: interactive.
@@ -427,7 +460,7 @@ Network usage: interactive.
 
 > **apiDeleteChat**(`chatType`, `chatId`, `deleteMode?`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:809](../src/api.ts#L809)
+Defined in: [src/api.ts:829](../src/api.ts#L829)
 
 Delete chat.
 Network usage: background.
@@ -456,7 +489,7 @@ Network usage: background.
 
 > **apiDeleteChatItems**(`chatType`, `chatId`, `chatItemIds`, `deleteMode`): `Promise`\<`ChatItemDeletion`[]\>
 
-Defined in: [src/api.ts:488](../src/api.ts#L488)
+Defined in: [src/api.ts:498](../src/api.ts#L498)
 
 Delete message.
 Network usage: background.
@@ -489,7 +522,7 @@ Network usage: background.
 
 > **apiDeleteGroupLink**(`groupId`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:672](../src/api.ts#L672)
+Defined in: [src/api.ts:692](../src/api.ts#L692)
 
 Delete group link.
 Network usage: background.
@@ -510,7 +543,7 @@ Network usage: background.
 
 > **apiDeleteMemberChatItem**(`groupId`, `chatItemIds`): `Promise`\<`ChatItemDeletion`[]\>
 
-Defined in: [src/api.ts:503](../src/api.ts#L503)
+Defined in: [src/api.ts:513](../src/api.ts#L513)
 
 Moderate message. Requires Moderator role (and higher than message author's).
 Network usage: background.
@@ -535,7 +568,7 @@ Network usage: background.
 
 > **apiDeleteUser**(`userId`, `delSMPQueues`, `viewPwd?`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:917](../src/api.ts#L917)
+Defined in: [src/api.ts:937](../src/api.ts#L937)
 
 Delete user profile.
 Network usage: background.
@@ -564,7 +597,7 @@ Network usage: background.
 
 > **apiDeleteUserAddress**(`userId`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:371](../src/api.ts#L371)
+Defined in: [src/api.ts:370](../src/api.ts#L370)
 
 Deletes a user address.
 Network usage: background.
@@ -585,7 +618,7 @@ Network usage: background.
 
 > **apiGetActiveUser**(): `Promise`\<`User` \| `undefined`\>
 
-Defined in: [src/api.ts:867](../src/api.ts#L867)
+Defined in: [src/api.ts:887](../src/api.ts#L887)
 
 Get active user profile
 Network usage: no.
@@ -600,7 +633,7 @@ Network usage: no.
 
 > **apiGetChat**(`chatType`, `chatId`, `count`): `Promise`\<`any`\>
 
-Defined in: [src/api.ts:857](../src/api.ts#L857)
+Defined in: [src/api.ts:877](../src/api.ts#L877)
 
 Get chat items.
 Network usage: no.
@@ -629,7 +662,7 @@ Network usage: no.
 
 > **apiGetChats**(`userId`, `pagination`, `query?`, `pendingConnections?`): `Promise`\<`AChat`[]\>
 
-Defined in: [src/api.ts:794](../src/api.ts#L794)
+Defined in: [src/api.ts:814](../src/api.ts#L814)
 
 Get chat previews (paginated).
 Network usage: no.
@@ -666,7 +699,7 @@ on large databases.
 
 > **apiGetGroupLink**(`groupId`): `Promise`\<`GroupLink`\>
 
-Defined in: [src/api.ts:681](../src/api.ts#L681)
+Defined in: [src/api.ts:701](../src/api.ts#L701)
 
 Get group link.
 Network usage: no.
@@ -687,7 +720,7 @@ Network usage: no.
 
 > **apiGetGroupLinkStr**(`groupId`): `Promise`\<`string`\>
 
-Defined in: [src/api.ts:687](../src/api.ts#L687)
+Defined in: [src/api.ts:707](../src/api.ts#L707)
 
 #### Parameters
 
@@ -705,7 +738,7 @@ Defined in: [src/api.ts:687](../src/api.ts#L687)
 
 > **apiGetUserAddress**(`userId`): `Promise`\<`UserContactLink` \| `undefined`\>
 
-Defined in: [src/api.ts:381](../src/api.ts#L381)
+Defined in: [src/api.ts:380](../src/api.ts#L380)
 
 Get bot address and settings.
 Network usage: no.
@@ -726,7 +759,7 @@ Network usage: no.
 
 > **apiJoinGroup**(`groupId`): `Promise`\<`GroupInfo`\>
 
-Defined in: [src/api.ts:560](../src/api.ts#L560)
+Defined in: [src/api.ts:580](../src/api.ts#L580)
 
 Join group.
 Network usage: interactive.
@@ -747,7 +780,7 @@ Network usage: interactive.
 
 > **apiLeaveGroup**(`groupId`): `Promise`\<`GroupInfo`\>
 
-Defined in: [src/api.ts:610](../src/api.ts#L610)
+Defined in: [src/api.ts:630](../src/api.ts#L630)
 
 Leave group.
 Network usage: background.
@@ -768,7 +801,7 @@ Network usage: background.
 
 > **apiListContacts**(`userId`): `Promise`\<`Contact`[]\>
 
-Defined in: [src/api.ts:770](../src/api.ts#L770)
+Defined in: [src/api.ts:790](../src/api.ts#L790)
 
 Get contacts.
 Network usage: no.
@@ -789,7 +822,7 @@ Network usage: no.
 
 > **apiListGroups**(`userId`, `contactId?`, `search?`): `Promise`\<`GroupInfo`[]\>
 
-Defined in: [src/api.ts:780](../src/api.ts#L780)
+Defined in: [src/api.ts:800](../src/api.ts#L800)
 
 Get groups.
 Network usage: no.
@@ -818,7 +851,7 @@ Network usage: no.
 
 > **apiListMembers**(`groupId`): `Promise`\<`GroupMember`[]\>
 
-Defined in: [src/api.ts:620](../src/api.ts#L620)
+Defined in: [src/api.ts:640](../src/api.ts#L640)
 
 Get group members.
 Network usage: no.
@@ -839,7 +872,7 @@ Network usage: no.
 
 > **apiListUsers**(): `Promise`\<`UserInfo`[]\>
 
-Defined in: [src/api.ts:897](../src/api.ts#L897)
+Defined in: [src/api.ts:917](../src/api.ts#L917)
 
 Get all user profiles
 Network usage: no.
@@ -854,7 +887,7 @@ Network usage: no.
 
 > **apiNewGroup**(`userId`, `groupProfile`): `Promise`\<`GroupInfo`\>
 
-Defined in: [src/api.ts:630](../src/api.ts#L630)
+Defined in: [src/api.ts:650](../src/api.ts#L650)
 
 Create group.
 Network usage: no.
@@ -879,7 +912,7 @@ Network usage: no.
 
 > **apiReceiveFile**(`fileId`): `Promise`\<`AChatItem`\>
 
-Defined in: [src/api.ts:529](../src/api.ts#L529)
+Defined in: [src/api.ts:539](../src/api.ts#L539)
 
 Receive file.
 Network usage: no.
@@ -900,7 +933,7 @@ Network usage: no.
 
 > **apiRejectContactRequest**(`contactReqId`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:760](../src/api.ts#L760)
+Defined in: [src/api.ts:780](../src/api.ts#L780)
 
 Reject contact request. The user who sent the request is **not notified**.
 Network usage: no.
@@ -921,7 +954,7 @@ Network usage: no.
 
 > **apiRemoveMembers**(`groupId`, `memberIds`, `withMessages?`): `Promise`\<`GroupMember`[]\>
 
-Defined in: [src/api.ts:600](../src/api.ts#L600)
+Defined in: [src/api.ts:620](../src/api.ts#L620)
 
 Remove members. Requires Admin role.
 Network usage: background.
@@ -950,7 +983,7 @@ Network usage: background.
 
 > **apiSendMemberContactInvitation**(`contactId`, `message?`): `Promise`\<`Contact`\>
 
-Defined in: [src/api.ts:964](../src/api.ts#L964)
+Defined in: [src/api.ts:984](../src/api.ts#L984)
 
 Send a direct message invitation to a group member contact.
 The contact must have been created with [apiCreateMemberContact](#apicreatemembercontact).
@@ -976,7 +1009,7 @@ Network usage: interactive.
 
 > **apiSendMessages**(`chat`, `messages`, `liveMessage?`): `Promise`\<`AChatItem`[]\>
 
-Defined in: [src/api.ts:432](../src/api.ts#L432)
+Defined in: [src/api.ts:442](../src/api.ts#L442)
 
 Send messages.
 Network usage: background.
@@ -1005,7 +1038,7 @@ Network usage: background.
 
 > **apiSendTextMessage**(`chat`, `text`, `inReplyTo?`): `Promise`\<`AChatItem`[]\>
 
-Defined in: [src/api.ts:455](../src/api.ts#L455)
+Defined in: [src/api.ts:465](../src/api.ts#L465)
 
 Send text message.
 Network usage: background.
@@ -1034,7 +1067,7 @@ Network usage: background.
 
 > **apiSendTextReply**(`chatItem`, `text`): `Promise`\<`AChatItem`[]\>
 
-Defined in: [src/api.ts:463](../src/api.ts#L463)
+Defined in: [src/api.ts:473](../src/api.ts#L473)
 
 Send text message in reply to received message.
 Network usage: background.
@@ -1059,7 +1092,7 @@ Network usage: background.
 
 > **apiSetActiveUser**(`userId`, `viewPwd?`): `Promise`\<`User`\>
 
-Defined in: [src/api.ts:907](../src/api.ts#L907)
+Defined in: [src/api.ts:927](../src/api.ts#L927)
 
 Set active user profile
 Network usage: no.
@@ -1084,7 +1117,7 @@ Network usage: no.
 
 > **apiSetAddressSettings**(`userId`, `__namedParameters`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:415](../src/api.ts#L415)
+Defined in: [src/api.ts:414](../src/api.ts#L414)
 
 Set bot address settings.
 Network usage: interactive.
@@ -1109,7 +1142,7 @@ Network usage: interactive.
 
 > **apiSetAutoAcceptMemberContacts**(`userId`, `onOff`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:846](../src/api.ts#L846)
+Defined in: [src/api.ts:866](../src/api.ts#L866)
 
 Set auto-accept member contacts.
 Network usage: no.
@@ -1134,7 +1167,7 @@ Network usage: no.
 
 > **apiSetContactCustomData**(`contactId`, `customData?`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:836](../src/api.ts#L836)
+Defined in: [src/api.ts:856](../src/api.ts#L856)
 
 Set contact custom data.
 Network usage: no.
@@ -1159,7 +1192,7 @@ Network usage: no.
 
 > **apiSetContactPrefs**(`contactId`, `preferences`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:943](../src/api.ts#L943)
+Defined in: [src/api.ts:963](../src/api.ts#L963)
 
 Configure chat preference overrides for the contact.
 Network usage: background.
@@ -1184,7 +1217,7 @@ Network usage: background.
 
 > **apiSetGroupCustomData**(`groupId`, `customData?`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:826](../src/api.ts#L826)
+Defined in: [src/api.ts:846](../src/api.ts#L846)
 
 Set group custom data.
 Network usage: no.
@@ -1209,7 +1242,7 @@ Network usage: no.
 
 > **apiSetGroupLinkMemberRole**(`groupId`, `memberRole`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:663](../src/api.ts#L663)
+Defined in: [src/api.ts:683](../src/api.ts#L683)
 
 Set member role for group link.
 Network usage: no.
@@ -1234,7 +1267,7 @@ Network usage: no.
 
 > **apiSetMembersRole**(`groupId`, `groupMemberIds`, `memberRole`): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:580](../src/api.ts#L580)
+Defined in: [src/api.ts:600](../src/api.ts#L600)
 
 Set members role. Requires Admin role.
 Network usage: background.
@@ -1263,7 +1296,7 @@ Network usage: background.
 
 > **apiSetProfileAddress**(`userId`, `enable`): `Promise`\<`UserProfileUpdateSummary`\>
 
-Defined in: [src/api.ts:399](../src/api.ts#L399)
+Defined in: [src/api.ts:398](../src/api.ts#L398)
 
 Add address to bot profile.
 Network usage: interactive.
@@ -1284,11 +1317,33 @@ Network usage: interactive.
 
 ***
 
+### apiSetUserDomain()
+
+> **apiSetUserDomain**(`userId`, `simplexDomain?`): `Promise`\<`User`\>
+
+Defined in: [src/api.ts:427](../src/api.ts#L427)
+
+#### Parameters
+
+##### userId
+
+`number`
+
+##### simplexDomain?
+
+`string`
+
+#### Returns
+
+`Promise`\<`User`\>
+
+***
+
 ### apiUpdateChatItem()
 
 > **apiUpdateChatItem**(`chatType`, `chatId`, `chatItemId`, `msgContent`, `liveMessage`): `Promise`\<`ChatItem`\>
 
-Defined in: [src/api.ts:471](../src/api.ts#L471)
+Defined in: [src/api.ts:481](../src/api.ts#L481)
 
 Update message.
 Network usage: background.
@@ -1325,7 +1380,7 @@ Network usage: background.
 
 > **apiUpdateGroupProfile**(`groupId`, `groupProfile`): `Promise`\<`GroupInfo`\>
 
-Defined in: [src/api.ts:640](../src/api.ts#L640)
+Defined in: [src/api.ts:660](../src/api.ts#L660)
 
 Update group profile.
 Network usage: background.
@@ -1350,7 +1405,7 @@ Network usage: background.
 
 > **apiUpdateProfile**(`userId`, `profile`): `Promise`\<`UserProfileUpdateSummary` \| `undefined`\>
 
-Defined in: [src/api.ts:927](../src/api.ts#L927)
+Defined in: [src/api.ts:947](../src/api.ts#L947)
 
 Update user profile.
 Network usage: background.
@@ -1375,7 +1430,7 @@ Network usage: background.
 
 > **close**(): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:158](../src/api.ts#L158)
+Defined in: [src/api.ts:157](../src/api.ts#L157)
 
 Stop chat controller and close chat database.
 The database is not closed if stopping fails.
@@ -1391,7 +1446,7 @@ Usually doesn't need to be called in chat bots.
 
 > **off**\<`K`\>(`event`, `subscriber?`): `void`
 
-Defined in: [src/api.ts:302](../src/api.ts#L302)
+Defined in: [src/api.ts:301](../src/api.ts#L301)
 
 Unsubscribe all or a specific handler from a specific event.
 
@@ -1425,7 +1480,7 @@ An optional subscriber function for the event.
 
 > **offAny**(`receiver?`): `void`
 
-Defined in: [src/api.ts:318](../src/api.ts#L318)
+Defined in: [src/api.ts:317](../src/api.ts#L317)
 
 Unsubscribe all or a specific handler from any events.
 
@@ -1449,7 +1504,7 @@ An optional subscriber function for the event.
 
 > **on**\<`K`\>(`subscribers`): `void`
 
-Defined in: [src/api.ts:212](../src/api.ts#L212)
+Defined in: [src/api.ts:211](../src/api.ts#L211)
 
 Subscribe multiple event handlers at once.
 
@@ -1479,7 +1534,7 @@ If the same function is subscribed to event.
 
 > **on**\<`K`\>(`event`, `subscriber`): `void`
 
-Defined in: [src/api.ts:220](../src/api.ts#L220)
+Defined in: [src/api.ts:219](../src/api.ts#L219)
 
 Subscribe a handler to a specific event.
 
@@ -1517,7 +1572,7 @@ If the same function is subscribed to event.
 
 > **onAny**(`receiver`): `void`
 
-Defined in: [src/api.ts:243](../src/api.ts#L243)
+Defined in: [src/api.ts:242](../src/api.ts#L242)
 
 Subscribe a handler to any event.
 
@@ -1543,7 +1598,7 @@ If the same function is subscribed to event.
 
 > **once**\<`K`\>(`event`, `subscriber`): `void`
 
-Defined in: [src/api.ts:254](../src/api.ts#L254)
+Defined in: [src/api.ts:253](../src/api.ts#L253)
 
 Subscribe a handler to a specific event to be delivered one time.
 
@@ -1581,7 +1636,7 @@ If the same function is subscribed to event.
 
 > **recvChatEvent**(`wait?`): `Promise`\<`ChatEvent` \| `undefined`\>
 
-Defined in: [src/api.ts:353](../src/api.ts#L353)
+Defined in: [src/api.ts:352](../src/api.ts#L352)
 
 #### Parameters
 
@@ -1599,7 +1654,7 @@ Defined in: [src/api.ts:353](../src/api.ts#L353)
 
 > **sendChatCmd**(`cmd`): `Promise`\<`ChatResponse`\>
 
-Defined in: [src/api.ts:349](../src/api.ts#L349)
+Defined in: [src/api.ts:348](../src/api.ts#L348)
 
 #### Parameters
 
@@ -1617,7 +1672,7 @@ Defined in: [src/api.ts:349](../src/api.ts#L349)
 
 > **startChat**(): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:124](../src/api.ts#L124)
+Defined in: [src/api.ts:123](../src/api.ts#L123)
 
 Start chat controller. Must be called with the existing user profile.
 
@@ -1631,7 +1686,7 @@ Start chat controller. Must be called with the existing user profile.
 
 > **stopChat**(): `Promise`\<`void`\>
 
-Defined in: [src/api.ts:147](../src/api.ts#L147)
+Defined in: [src/api.ts:146](../src/api.ts#L146)
 
 Stop chat controller.
 `close` calls it before closing the database.
@@ -1649,7 +1704,7 @@ Usually doesn't need to be called in chat bots.
 
 > **wait**\<`K`\>(`event`): `Promise`\<`ChatEvent` & `object`\>
 
-Defined in: [src/api.ts:262](../src/api.ts#L262)
+Defined in: [src/api.ts:261](../src/api.ts#L261)
 
 Waits for specific event, with an optional predicate.
 Returns `undefined` on timeout if specified.
@@ -1674,7 +1729,7 @@ Returns `undefined` on timeout if specified.
 
 > **wait**\<`K`\>(`event`, `predicate`): `Promise`\<`ChatEvent` & `object`\>
 
-Defined in: [src/api.ts:263](../src/api.ts#L263)
+Defined in: [src/api.ts:262](../src/api.ts#L262)
 
 Waits for specific event, with an optional predicate.
 Returns `undefined` on timeout if specified.
@@ -1703,7 +1758,7 @@ Returns `undefined` on timeout if specified.
 
 > **wait**\<`K`\>(`event`, `timeout`): `Promise`\<ChatEvent & \{ type: K; \} \| `undefined`\>
 
-Defined in: [src/api.ts:264](../src/api.ts#L264)
+Defined in: [src/api.ts:263](../src/api.ts#L263)
 
 Waits for specific event, with an optional predicate.
 Returns `undefined` on timeout if specified.
@@ -1732,7 +1787,7 @@ Returns `undefined` on timeout if specified.
 
 > **wait**\<`K`\>(`event`, `predicate`, `timeout`): `Promise`\<ChatEvent & \{ type: K; \} \| `undefined`\>
 
-Defined in: [src/api.ts:265](../src/api.ts#L265)
+Defined in: [src/api.ts:264](../src/api.ts#L264)
 
 Waits for specific event, with an optional predicate.
 Returns `undefined` on timeout if specified.
@@ -1767,9 +1822,9 @@ Returns `undefined` on timeout if specified.
 
 > `static` **init**(`db`, `confirm?`, `queueSize?`): `Promise`\<`ChatApi`\>
 
-Defined in: [src/api.ts:111](../src/api.ts#L111)
+Defined in: [src/api.ts:109](../src/api.ts#L109)
 
-Initializes the ChatApi.
+Initializes the ChatApi, loading libsimplex for `db.type` (downloaded on first use).
 
 #### Parameters
 

packages/simplex-chat-nodejs/docs/api.TypeAlias.DbConfig.md

@@ -8,12 +8,10 @@
 
 > **DbConfig** = \{ `encryptionKey?`: `string`; `filePrefix`: `string`; `type`: `"sqlite"`; \} \| \{ `connectionString`: `string`; `schemaPrefix?`: `string`; `type`: `"postgres"`; \}
 
-Defined in: [src/api.ts:65](../src/api.ts#L65)
+Defined in: [src/api.ts:63](../src/api.ts#L63)
 
-Database configuration. The native library is built against exactly one
-backend (see `simplex_backend` / `SIMPLEX_BACKEND` at install time); this
-type makes the caller state which one they are targeting so field names
-can't lie about their meaning.
+Database configuration. `type` selects the libsimplex backend loaded by
+`ChatApi.init`; one backend per process.
 
 ## Union Members
 

packages/simplex-chat-nodejs/docs/bot.Function.run.md

@@ -8,7 +8,7 @@
 
 > **run**(`__namedParameters`): `Promise`\<\[[`ChatApi`](api.Class.ChatApi.md), `User`, `UserContactLink` \| `undefined`\]\>
 
-Defined in: [src/bot.ts:48](../src/bot.ts#L48)
+Defined in: [src/bot.ts:49](../src/bot.ts#L49)
 
 ## Parameters
 

packages/simplex-chat-nodejs/docs/bot.Function.subscribeChatItems.md

@@ -8,7 +8,7 @@
 
 > **subscribeChatItems**(`bot`, `onMessage`, `commands`): `void`
 
-Defined in: [src/bot.ts:108](../src/bot.ts#L108)
+Defined in: [src/bot.ts:110](../src/bot.ts#L110)
 
 ## Parameters
 

packages/simplex-chat-nodejs/docs/bot.Interface.BotConfig.md

@@ -14,7 +14,7 @@ Defined in: [src/bot.ts:36](../src/bot.ts#L36)
 
 > **dbOpts**: [`BotDbOpts`](bot.TypeAlias.BotDbOpts.md)
 
-Defined in: [src/bot.ts:38](../src/bot.ts#L38)
+Defined in: [src/bot.ts:39](../src/bot.ts#L39)
 
 ***
 
@@ -22,7 +22,7 @@ Defined in: [src/bot.ts:38](../src/bot.ts#L38)
 
 > `optional` **events?**: [`EventSubscribers`](api.TypeAlias.EventSubscribers.md)
 
-Defined in: [src/bot.ts:45](../src/bot.ts#L45)
+Defined in: [src/bot.ts:46](../src/bot.ts#L46)
 
 ***
 
@@ -30,7 +30,7 @@ Defined in: [src/bot.ts:45](../src/bot.ts#L45)
 
 > `optional` **onCommands?**: `object`
 
-Defined in: [src/bot.ts:42](../src/bot.ts#L42)
+Defined in: [src/bot.ts:43](../src/bot.ts#L43)
 
 #### Index Signature
 
@@ -42,7 +42,7 @@ Defined in: [src/bot.ts:42](../src/bot.ts#L42)
 
 > `optional` **onMessage?**: (`chatItem`, `content`, `chat`) => `void` \| `Promise`\<`void`\>
 
-Defined in: [src/bot.ts:40](../src/bot.ts#L40)
+Defined in: [src/bot.ts:41](../src/bot.ts#L41)
 
 #### Parameters
 
@@ -68,7 +68,7 @@ Defined in: [src/bot.ts:40](../src/bot.ts#L40)
 
 > **options**: [`BotOptions`](bot.Interface.BotOptions.md)
 
-Defined in: [src/bot.ts:39](../src/bot.ts#L39)
+Defined in: [src/bot.ts:40](../src/bot.ts#L40)
 
 ***
 
@@ -77,3 +77,11 @@ Defined in: [src/bot.ts:39](../src/bot.ts#L39)
 > **profile**: `Profile`
 
 Defined in: [src/bot.ts:37](../src/bot.ts#L37)
+
+***
+
+### simplexDomain?
+
+> `optional` **simplexDomain?**: `string` \| `null`
+
+Defined in: [src/bot.ts:38](../src/bot.ts#L38)

packages/simplex-chat-nodejs/docs/core.Class.ChatAPIError.md

@@ -6,7 +6,7 @@
 
 # Class: ChatAPIError
 
-Defined in: [src/core.ts:95](../src/core.ts#L95)
+Defined in: [src/core.ts:117](../src/core.ts#L117)
 
 ## Extends
 
@@ -18,7 +18,7 @@ Defined in: [src/core.ts:95](../src/core.ts#L95)
 
 > **new ChatAPIError**(`message`, `chatError?`): `ChatAPIError`
 
-Defined in: [src/core.ts:96](../src/core.ts#L96)
+Defined in: [src/core.ts:118](../src/core.ts#L118)
 
 #### Parameters
 
@@ -44,7 +44,7 @@ Defined in: [src/core.ts:96](../src/core.ts#L96)
 
 > **chatError**: `ChatError` \| `undefined` = `undefined`
 
-Defined in: [src/core.ts:96](../src/core.ts#L96)
+Defined in: [src/core.ts:118](../src/core.ts#L118)
 
 ***
 
@@ -52,7 +52,7 @@ Defined in: [src/core.ts:96](../src/core.ts#L96)
 
 > **message**: `string`
 
-Defined in: [src/core.ts:96](../src/core.ts#L96)
+Defined in: [src/core.ts:118](../src/core.ts#L118)
 
 #### Inherited from
 

packages/simplex-chat-nodejs/docs/core.Class.ChatInitError.md

@@ -6,7 +6,7 @@
 
 # Class: ChatInitError
 
-Defined in: [src/core.ts:119](../src/core.ts#L119)
+Defined in: [src/core.ts:141](../src/core.ts#L141)
 
 ## Extends
 
@@ -18,7 +18,7 @@ Defined in: [src/core.ts:119](../src/core.ts#L119)
 
 > **new ChatInitError**(`message`, `dbMigrationError`): `ChatInitError`
 
-Defined in: [src/core.ts:120](../src/core.ts#L120)
+Defined in: [src/core.ts:142](../src/core.ts#L142)
 
 #### Parameters
 
@@ -44,7 +44,7 @@ Defined in: [src/core.ts:120](../src/core.ts#L120)
 
 > **dbMigrationError**: [`DBMigrationError`](core.TypeAlias.DBMigrationError.md)
 
-Defined in: [src/core.ts:120](../src/core.ts#L120)
+Defined in: [src/core.ts:142](../src/core.ts#L142)
 
 ***
 
@@ -52,7 +52,7 @@ Defined in: [src/core.ts:120](../src/core.ts#L120)
 
 > **message**: `string`
 
-Defined in: [src/core.ts:120](../src/core.ts#L120)
+Defined in: [src/core.ts:142](../src/core.ts#L142)
 
 #### Inherited from
 

packages/simplex-chat-nodejs/docs/core.DBMigrationError.Interface.ErrorMigration.md

@@ -6,7 +6,7 @@
 
 # Interface: ErrorMigration
 
-Defined in: [src/core.ts:152](../src/core.ts#L152)
+Defined in: [src/core.ts:174](../src/core.ts#L174)
 
 ## Extends
 
@@ -18,7 +18,7 @@ Defined in: [src/core.ts:152](../src/core.ts#L152)
 
 > **dbFile**: `string`
 
-Defined in: [src/core.ts:154](../src/core.ts#L154)
+Defined in: [src/core.ts:176](../src/core.ts#L176)
 
 ***
 
@@ -26,7 +26,7 @@ Defined in: [src/core.ts:154](../src/core.ts#L154)
 
 > **migrationError**: [`MigrationError`](core.TypeAlias.MigrationError.md)
 
-Defined in: [src/core.ts:155](../src/core.ts#L155)
+Defined in: [src/core.ts:177](../src/core.ts#L177)
 
 ***
 
@@ -34,7 +34,7 @@ Defined in: [src/core.ts:155](../src/core.ts#L155)
 
 > **type**: `"errorMigration"`
 
-Defined in: [src/core.ts:153](../src/core.ts#L153)
+Defined in: [src/core.ts:175](../src/core.ts#L175)
 
 #### Overrides
 

packages/simplex-chat-nodejs/docs/core.DBMigrationError.Interface.ErrorNotADatabase.md

@@ -6,7 +6,7 @@
 
 # Interface: ErrorNotADatabase
 
-Defined in: [src/core.ts:147](../src/core.ts#L147)
+Defined in: [src/core.ts:169](../src/core.ts#L169)
 
 ## Extends
 
@@ -18,7 +18,7 @@ Defined in: [src/core.ts:147](../src/core.ts#L147)
 
 > **dbFile**: `string`
 
-Defined in: [src/core.ts:149](../src/core.ts#L149)
+Defined in: [src/core.ts:171](../src/core.ts#L171)
 
 ***
 
@@ -26,7 +26,7 @@ Defined in: [src/core.ts:149](../src/core.ts#L149)
 
 > **type**: `"errorNotADatabase"`
 
-Defined in: [src/core.ts:148](../src/core.ts#L148)
+Defined in: [src/core.ts:170](../src/core.ts#L170)
 
 #### Overrides
 

packages/simplex-chat-nodejs/docs/core.DBMigrationError.Interface.ErrorSQL.md

@@ -6,7 +6,7 @@
 
 # Interface: ErrorSQL
 
-Defined in: [src/core.ts:158](../src/core.ts#L158)
+Defined in: [src/core.ts:180](../src/core.ts#L180)
 
 ## Extends
 
@@ -18,7 +18,7 @@ Defined in: [src/core.ts:158](../src/core.ts#L158)
 
 > **dbFile**: `string`
 
-Defined in: [src/core.ts:160](../src/core.ts#L160)
+Defined in: [src/core.ts:182](../src/core.ts#L182)
 
 ***
 
@@ -26,7 +26,7 @@ Defined in: [src/core.ts:160](../src/core.ts#L160)
 
 > **migrationSQLError**: `string`
 
-Defined in: [src/core.ts:161](../src/core.ts#L161)
+Defined in: [src/core.ts:183](../src/core.ts#L183)
 
 ***
 
@@ -34,7 +34,7 @@ Defined in: [src/core.ts:161](../src/core.ts#L161)
 
 > **type**: `"errorSQL"`
 
-Defined in: [src/core.ts:159](../src/core.ts#L159)
+Defined in: [src/core.ts:181](../src/core.ts#L181)
 
 #### Overrides
 

packages/simplex-chat-nodejs/docs/core.DBMigrationError.Interface.InvalidConfirmation.md

@@ -6,7 +6,7 @@
 
 # Interface: InvalidConfirmation
 
-Defined in: [src/core.ts:139](../src/core.ts#L139)
+Defined in: [src/core.ts:161](../src/core.ts#L161)
 
 ## Extends
 
@@ -18,7 +18,7 @@ Defined in: [src/core.ts:139](../src/core.ts#L139)
 
 > **type**: `"invalidConfirmation"`
 
-Defined in: [src/core.ts:140](../src/core.ts#L140)
+Defined in: [src/core.ts:162](../src/core.ts#L162)
 
 #### Overrides
 

packages/simplex-chat-nodejs/docs/core.DBMigrationError.Interface.InvalidQueueSize.md

@@ -6,7 +6,7 @@
 
 # Interface: InvalidQueueSize
 
-Defined in: [src/core.ts:143](../src/core.ts#L143)
+Defined in: [src/core.ts:165](../src/core.ts#L165)
 
 ## Extends
 
@@ -18,7 +18,7 @@ Defined in: [src/core.ts:143](../src/core.ts#L143)
 
 > **type**: `"invalidQueueSize"`
 
-Defined in: [src/core.ts:144](../src/core.ts#L144)
+Defined in: [src/core.ts:166](../src/core.ts#L166)
 
 #### Overrides
 

packages/simplex-chat-nodejs/docs/core.DBMigrationError.TypeAlias.Tag.md

@@ -8,4 +8,4 @@
 
 > **Tag** = `"invalidConfirmation"` \| `"invalidQueueSize"` \| `"errorNotADatabase"` \| `"errorMigration"` \| `"errorSQL"`
 
-Defined in: [src/core.ts:133](../src/core.ts#L133)
+Defined in: [src/core.ts:155](../src/core.ts#L155)

packages/simplex-chat-nodejs/docs/core.Enumeration.MigrationConfirmation.md

@@ -6,7 +6,7 @@
 
 # Enumeration: MigrationConfirmation
 
-Defined in: [src/core.ts:104](../src/core.ts#L104)
+Defined in: [src/core.ts:126](../src/core.ts#L126)
 
 Migration confirmation mode
 
@@ -16,7 +16,7 @@ Migration confirmation mode
 
 > **Console**: `"console"`
 
-Defined in: [src/core.ts:107](../src/core.ts#L107)
+Defined in: [src/core.ts:129](../src/core.ts#L129)
 
 ***
 
@@ -24,7 +24,7 @@ Defined in: [src/core.ts:107](../src/core.ts#L107)
 
 > **Error**: `"error"`
 
-Defined in: [src/core.ts:108](../src/core.ts#L108)
+Defined in: [src/core.ts:130](../src/core.ts#L130)
 
 ***
 
@@ -32,7 +32,7 @@ Defined in: [src/core.ts:108](../src/core.ts#L108)
 
 > **YesUp**: `"yesUp"`
 
-Defined in: [src/core.ts:105](../src/core.ts#L105)
+Defined in: [src/core.ts:127](../src/core.ts#L127)
 
 ***
 
@@ -40,4 +40,4 @@ Defined in: [src/core.ts:105](../src/core.ts#L105)
 
 > **YesUpDown**: `"yesUpDown"`
 
-Defined in: [src/core.ts:106](../src/core.ts#L106)
+Defined in: [src/core.ts:128](../src/core.ts#L128)

packages/simplex-chat-nodejs/docs/core.Function.chatCloseStore.md

@@ -8,7 +8,7 @@
 
 > **chatCloseStore**(`ctrl`): `Promise`\<`void`\>
 
-Defined in: [src/core.ts:20](../src/core.ts#L20)
+Defined in: [src/core.ts:42](../src/core.ts#L42)
 
 Close chat store
 

packages/simplex-chat-nodejs/docs/core.Function.chatDecryptFile.md

@@ -8,7 +8,7 @@
 
 > **chatDecryptFile**(`fromPath`, `__namedParameters`, `toPath`): `Promise`\<`void`\>
 
-Defined in: [src/core.ts:76](../src/core.ts#L76)
+Defined in: [src/core.ts:98](../src/core.ts#L98)
 
 Decrypt file
 

packages/simplex-chat-nodejs/docs/core.Function.chatEncryptFile.md

@@ -8,7 +8,7 @@
 
 > **chatEncryptFile**(`ctrl`, `fromPath`, `toPath`): `Promise`\<[`CryptoArgs`](core.Interface.CryptoArgs.md)\>
 
-Defined in: [src/core.ts:68](../src/core.ts#L68)
+Defined in: [src/core.ts:90](../src/core.ts#L90)
 
 Encrypt file
 

packages/simplex-chat-nodejs/docs/core.Function.chatMigrateInit.md

@@ -8,7 +8,7 @@
 
 > **chatMigrateInit**(`dbPath`, `dbKey`, `confirm`, `queueSize?`): `Promise`\<`bigint`\>
 
-Defined in: [src/core.ts:8](../src/core.ts#L8)
+Defined in: [src/core.ts:30](../src/core.ts#L30)
 
 Initialize chat controller
 

packages/simplex-chat-nodejs/docs/core.Function.chatReadFile.md

@@ -8,7 +8,7 @@
 
 > **chatReadFile**(`path`, `__namedParameters`): `Promise`\<`Buffer`\<`ArrayBufferLike`\>\>
 
-Defined in: [src/core.ts:61](../src/core.ts#L61)
+Defined in: [src/core.ts:83](../src/core.ts#L83)
 
 Read buffer from encrypted file
 

packages/simplex-chat-nodejs/docs/core.Function.chatRecvMsgWait.md

@@ -8,7 +8,7 @@
 
 > **chatRecvMsgWait**(`ctrl`, `wait`): `Promise`\<`ChatEvent` \| `undefined`\>
 
-Defined in: [src/core.ts:40](../src/core.ts#L40)
+Defined in: [src/core.ts:62](../src/core.ts#L62)
 
 Receive chat event
 

packages/simplex-chat-nodejs/docs/core.Function.chatSendCmd.md

@@ -8,7 +8,7 @@
 
 > **chatSendCmd**(`ctrl`, `cmd`): `Promise`\<`ChatResponse`\>
 
-Defined in: [src/core.ts:28](../src/core.ts#L28)
+Defined in: [src/core.ts:50](../src/core.ts#L50)
 
 Send chat command as string
 

packages/simplex-chat-nodejs/docs/core.Function.chatWriteFile.md

@@ -8,7 +8,7 @@
 
 > **chatWriteFile**(`ctrl`, `path`, `buffer`): `Promise`\<[`CryptoArgs`](core.Interface.CryptoArgs.md)\>
 
-Defined in: [src/core.ts:53](../src/core.ts#L53)
+Defined in: [src/core.ts:75](../src/core.ts#L75)
 
 Write buffer to encrypted file
 

packages/simplex-chat-nodejs/docs/core.Function.loadLibrary.md

@@ -0,0 +1,24 @@
+[**simplex-chat**](README.md)
+
+***
+
+[simplex-chat](README.md) / [core](Namespace.core.md) / loadLibrary
+
+# Function: loadLibrary()
+
+> **loadLibrary**(`backend`): `Promise`\<`void`\>
+
+Defined in: [src/core.ts:13](../src/core.ts#L13)
+
+Resolve (downloading on first use) and load libsimplex for the backend.
+One libsimplex per process: the Haskell runtime is initialized once, and another backend is rejected.
+
+## Parameters
+
+### backend
+
+[`Backend`](core.TypeAlias.Backend.md)
+
+## Returns
+
+`Promise`\<`void`\>

packages/simplex-chat-nodejs/docs/core.Interface.APIResult.md

@@ -6,7 +6,7 @@
 
 # Interface: APIResult\<R\>
 
-Defined in: [src/core.ts:90](../src/core.ts#L90)
+Defined in: [src/core.ts:112](../src/core.ts#L112)
 
 ## Type Parameters
 
@@ -20,7 +20,7 @@ Defined in: [src/core.ts:90](../src/core.ts#L90)
 
 > `optional` **error?**: `ChatError`
 
-Defined in: [src/core.ts:92](../src/core.ts#L92)
+Defined in: [src/core.ts:114](../src/core.ts#L114)
 
 ***
 
@@ -28,4 +28,4 @@ Defined in: [src/core.ts:92](../src/core.ts#L92)
 
 > `optional` **result?**: `R`
 
-Defined in: [src/core.ts:91](../src/core.ts#L91)
+Defined in: [src/core.ts:113](../src/core.ts#L113)

packages/simplex-chat-nodejs/docs/core.Interface.CryptoArgs.md

@@ -6,7 +6,7 @@
 
 # Interface: CryptoArgs
 
-Defined in: [src/core.ts:114](../src/core.ts#L114)
+Defined in: [src/core.ts:136](../src/core.ts#L136)
 
 File encryption key and nonce
 
@@ -16,7 +16,7 @@ File encryption key and nonce
 
 > **fileKey**: `string`
 
-Defined in: [src/core.ts:115](../src/core.ts#L115)
+Defined in: [src/core.ts:137](../src/core.ts#L137)
 
 ***
 
@@ -24,4 +24,4 @@ Defined in: [src/core.ts:115](../src/core.ts#L115)
 
 > **fileNonce**: `string`
 
-Defined in: [src/core.ts:116](../src/core.ts#L116)
+Defined in: [src/core.ts:138](../src/core.ts#L138)

packages/simplex-chat-nodejs/docs/core.Interface.UpMigration.md

@@ -6,7 +6,7 @@
 
 # Interface: UpMigration
 
-Defined in: [src/core.ts:193](../src/core.ts#L193)
+Defined in: [src/core.ts:215](../src/core.ts#L215)
 
 ## Properties
 
@@ -14,7 +14,7 @@ Defined in: [src/core.ts:193](../src/core.ts#L193)
 
 > **upName**: `string`
 
-Defined in: [src/core.ts:194](../src/core.ts#L194)
+Defined in: [src/core.ts:216](../src/core.ts#L216)
 
 ***
 
@@ -22,4 +22,4 @@ Defined in: [src/core.ts:194](../src/core.ts#L194)
 
 > **withDown**: `boolean`
 
-Defined in: [src/core.ts:195](../src/core.ts#L195)
+Defined in: [src/core.ts:217](../src/core.ts#L217)

packages/simplex-chat-nodejs/docs/core.MTRError.Interface.MTREDifferent.md

@@ -6,7 +6,7 @@
 
 # Interface: MTREDifferent
 
-Defined in: [src/core.ts:214](../src/core.ts#L214)
+Defined in: [src/core.ts:236](../src/core.ts#L236)
 
 ## Extends
 
@@ -18,7 +18,7 @@ Defined in: [src/core.ts:214](../src/core.ts#L214)
 
 > **downMigrations**: `string`[]
 
-Defined in: [src/core.ts:216](../src/core.ts#L216)
+Defined in: [src/core.ts:238](../src/core.ts#L238)
 
 ***
 
@@ -26,7 +26,7 @@ Defined in: [src/core.ts:216](../src/core.ts#L216)
 
 > **type**: `"different"`
 
-Defined in: [src/core.ts:215](../src/core.ts#L215)
+Defined in: [src/core.ts:237](../src/core.ts#L237)
 
 #### Overrides
 

packages/simplex-chat-nodejs/docs/core.MTRError.Interface.MTRENoDown.md

@@ -6,7 +6,7 @@
 
 # Interface: MTRENoDown
 
-Defined in: [src/core.ts:209](../src/core.ts#L209)
+Defined in: [src/core.ts:231](../src/core.ts#L231)
 
 ## Extends
 
@@ -18,7 +18,7 @@ Defined in: [src/core.ts:209](../src/core.ts#L209)
 
 > **dbMigrations**: `string`[]
 
-Defined in: [src/core.ts:211](../src/core.ts#L211)
+Defined in: [src/core.ts:233](../src/core.ts#L233)
 
 ***
 
@@ -26,7 +26,7 @@ Defined in: [src/core.ts:211](../src/core.ts#L211)
 
 > **type**: `"noDown"`
 
-Defined in: [src/core.ts:210](../src/core.ts#L210)
+Defined in: [src/core.ts:232](../src/core.ts#L232)
 
 #### Overrides
 

packages/simplex-chat-nodejs/docs/core.MTRError.TypeAlias.Tag.md

@@ -8,4 +8,4 @@
 
 > **Tag** = `"noDown"` \| `"different"`
 
-Defined in: [src/core.ts:203](../src/core.ts#L203)
+Defined in: [src/core.ts:225](../src/core.ts#L225)

packages/simplex-chat-nodejs/docs/core.MigrationError.Interface.MEDowngrade.md

@@ -6,7 +6,7 @@
 
 # Interface: MEDowngrade
 
-Defined in: [src/core.ts:182](../src/core.ts#L182)
+Defined in: [src/core.ts:204](../src/core.ts#L204)
 
 ## Extends
 
@@ -18,7 +18,7 @@ Defined in: [src/core.ts:182](../src/core.ts#L182)
 
 > **downMigrations**: `string`[]
 
-Defined in: [src/core.ts:184](../src/core.ts#L184)
+Defined in: [src/core.ts:206](../src/core.ts#L206)
 
 ***
 
@@ -26,7 +26,7 @@ Defined in: [src/core.ts:184](../src/core.ts#L184)
 
 > **type**: `"downgrade"`
 
-Defined in: [src/core.ts:183](../src/core.ts#L183)
+Defined in: [src/core.ts:205](../src/core.ts#L205)
 
 #### Overrides
 

packages/simplex-chat-nodejs/docs/core.MigrationError.Interface.MEUpgrade.md

@@ -6,7 +6,7 @@
 
 # Interface: MEUpgrade
 
-Defined in: [src/core.ts:177](../src/core.ts#L177)
+Defined in: [src/core.ts:199](../src/core.ts#L199)
 
 ## Extends
 
@@ -18,7 +18,7 @@ Defined in: [src/core.ts:177](../src/core.ts#L177)
 
 > **type**: `"upgrade"`
 
-Defined in: [src/core.ts:178](../src/core.ts#L178)
+Defined in: [src/core.ts:200](../src/core.ts#L200)
 
 #### Overrides
 
@@ -30,4 +30,4 @@ Defined in: [src/core.ts:178](../src/core.ts#L178)
 
 > **upMigrations**: [`UpMigration`](core.Interface.UpMigration.md)[]
 
-Defined in: [src/core.ts:179](../src/core.ts#L179)
+Defined in: [src/core.ts:201](../src/core.ts#L201)

packages/simplex-chat-nodejs/docs/core.MigrationError.Interface.MigrationError.md

@@ -6,7 +6,7 @@
 
 # Interface: MigrationError
 
-Defined in: [src/core.ts:187](../src/core.ts#L187)
+Defined in: [src/core.ts:209](../src/core.ts#L209)
 
 ## Extends
 
@@ -18,7 +18,7 @@ Defined in: [src/core.ts:187](../src/core.ts#L187)
 
 > **mtrError**: [`MTRError`](core.TypeAlias.MTRError.md)
 
-Defined in: [src/core.ts:189](../src/core.ts#L189)
+Defined in: [src/core.ts:211](../src/core.ts#L211)
 
 ***
 
@@ -26,7 +26,7 @@ Defined in: [src/core.ts:189](../src/core.ts#L189)
 
 > **type**: `"migrationError"`
 
-Defined in: [src/core.ts:188](../src/core.ts#L188)
+Defined in: [src/core.ts:210](../src/core.ts#L210)
 
 #### Overrides
 

packages/simplex-chat-nodejs/docs/core.MigrationError.TypeAlias.Tag.md

@@ -8,4 +8,4 @@
 
 > **Tag** = `"upgrade"` \| `"downgrade"` \| `"migrationError"`
 
-Defined in: [src/core.ts:171](../src/core.ts#L171)
+Defined in: [src/core.ts:193](../src/core.ts#L193)

packages/simplex-chat-nodejs/docs/core.TypeAlias.Backend.md

@@ -0,0 +1,11 @@
+[**simplex-chat**](README.md)
+
+***
+
+[simplex-chat](README.md) / [core](Namespace.core.md) / Backend
+
+# Type Alias: Backend
+
+> **Backend** = `"sqlite"` \| `"postgres"`
+
+Defined in: [src/core.ts:5](../src/core.ts#L5)

packages/simplex-chat-nodejs/docs/core.TypeAlias.DBMigrationError.md

@@ -8,4 +8,4 @@
 
 > **DBMigrationError** = [`InvalidConfirmation`](core.DBMigrationError.Interface.InvalidConfirmation.md) \| [`InvalidQueueSize`](core.DBMigrationError.Interface.InvalidQueueSize.md) \| [`ErrorNotADatabase`](core.DBMigrationError.Interface.ErrorNotADatabase.md) \| [`ErrorMigration`](core.DBMigrationError.Interface.ErrorMigration.md) \| [`ErrorSQL`](core.DBMigrationError.Interface.ErrorSQL.md)
 
-Defined in: [src/core.ts:125](../src/core.ts#L125)
+Defined in: [src/core.ts:147](../src/core.ts#L147)

packages/simplex-chat-nodejs/docs/core.TypeAlias.MTRError.md

@@ -8,4 +8,4 @@
 
 > **MTRError** = [`MTRENoDown`](core.MTRError.Interface.MTRENoDown.md) \| [`MTREDifferent`](core.MTRError.Interface.MTREDifferent.md)
 
-Defined in: [src/core.ts:198](../src/core.ts#L198)
+Defined in: [src/core.ts:220](../src/core.ts#L220)

packages/simplex-chat-nodejs/docs/core.TypeAlias.MigrationError.md

@@ -8,4 +8,4 @@
 
 > **MigrationError** = [`MEUpgrade`](core.MigrationError.Interface.MEUpgrade.md) \| [`MEDowngrade`](core.MigrationError.Interface.MEDowngrade.md) \| [`MigrationError`](core.MigrationError.Interface.MigrationError.md)
 
-Defined in: [src/core.ts:165](../src/core.ts#L165)
+Defined in: [src/core.ts:187](../src/core.ts#L187)