beginnings of a qt gui.

.gitignore

@@ -1,3 +1,4 @@
 nak
 mnt
 nak.exe
+qtbox

go.mod

@@ -20,8 +20,10 @@ require (
 	github.com/mattn/go-isatty v0.0.20
 	github.com/mattn/go-tty v0.0.7
 	github.com/mdp/qrterminal/v3 v3.2.1
+	github.com/mitchellh/go-homedir v1.1.0
 	github.com/puzpuzpuz/xsync/v3 v3.5.1
 	github.com/stretchr/testify v1.10.0
+	github.com/therecipe/qt v0.0.0-20200904063919-c0c124a5770d
 	github.com/urfave/cli/v3 v3.0.0-beta1
 	golang.org/x/exp v0.0.0-20251113190631-e25ba8c21ef6
 	golang.org/x/sync v0.18.0
@@ -50,6 +52,7 @@ require (
 	github.com/fxamacker/cbor/v2 v2.7.0 // indirect
 	github.com/go-git/go-git/v5 v5.16.3 // indirect
 	github.com/google/uuid v1.6.0 // indirect
+	github.com/gopherjs/gopherjs v0.0.0-20190411002643-bd77b112433e // indirect
 	github.com/hablullah/go-hijri v1.0.2 // indirect
 	github.com/hablullah/go-juliandays v1.0.0 // indirect
 	github.com/jalaali/go-jalaali v0.0.0-20210801064154-80525e88d958 // indirect

go.sum

@@ -107,6 +107,8 @@ github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gopherjs/gopherjs v0.0.0-20190411002643-bd77b112433e h1:XWcjeEtTFTOVA9Fs1w7n2XBftk5ib4oZrhzWk0B+3eA=
+github.com/gopherjs/gopherjs v0.0.0-20190411002643-bd77b112433e/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/hablullah/go-hijri v1.0.2 h1:drT/MZpSZJQXo7jftf5fthArShcaMtsal0Zf/dnmp6k=
 github.com/hablullah/go-hijri v1.0.2/go.mod h1:OS5qyYLDjORXzK4O1adFw9Q5WfhOcMdAKglDkcTxgWQ=
@@ -131,6 +133,8 @@ github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:C
 github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23/go.mod h1:J+Gs4SYgM6CZQHDETBtE9HaSEkGmuNXF86RwHhHUvq4=
 github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
 github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
@@ -159,6 +163,8 @@ github.com/mdp/qrterminal/v3 v3.2.1 h1:6+yQjiiOsSuXT5n9/m60E54vdgFsw0zhADHhHLrFe
 github.com/mdp/qrterminal/v3 v3.2.1/go.mod h1:jOTmXvnBsMy5xqLniO0R++Jmjs2sTm9dFSuQ5kpz/SU=
 github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b h1:j7+1HpAFS1zy5+Q4qx1fWh90gTKwiN4QCGoY9TWyyO4=
 github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b/go.mod h1:01TrycV0kFyexm33Z7vhZRXopbI8J3TDReVlkTgMUxE=
+github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
+github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/moby/sys/mountinfo v0.6.2 h1:BzJjoreD5BMFNmD9Rus6gdd1pLuecOFPt8wC+Vygl78=
 github.com/moby/sys/mountinfo v0.6.2/go.mod h1:IJb6JQeOklcdMU9F5xQ8ZALD+CUr5VlGpwtX+VE0rpI=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
@@ -187,7 +193,11 @@ github.com/rs/cors v1.11.1 h1:eU3gRzXLRK57F5rKMGMZURNdIG4EoAmX8k94r9wXWHA=
 github.com/rs/cors v1.11.1/go.mod h1:XyqrcTp5zjWr1wsJ8PIRZssZ8b/WMcMf71DJnit4EMU=
 github.com/savsgio/gotils v0.0.0-20240704082632-aef3928b8a38 h1:D0vL7YNisV2yqE55+q0lFuGse6U8lxlg7fYTctlT5Gc=
 github.com/savsgio/gotils v0.0.0-20240704082632-aef3928b8a38/go.mod h1:sM7Mt7uEoCeFSCBM+qBrqvEo+/9vdmj19wzp3yzUhmg=
+github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
@@ -200,6 +210,8 @@ github.com/templexxx/xhex v0.0.0-20200614015412-aed53437177b h1:XeDLE6c9mzHpdv3W
 github.com/templexxx/xhex v0.0.0-20200614015412-aed53437177b/go.mod h1:7rwmCH0wC2fQvNEvPZ3sKXukhyCTyiaZ5VTZMQYpZKQ=
 github.com/tetratelabs/wazero v1.8.0 h1:iEKu0d4c2Pd+QSRieYbnQC9yiFlMS9D+Jr0LsRmcF4g=
 github.com/tetratelabs/wazero v1.8.0/go.mod h1:yAI0XTsMBhREkM/YDAK/zNou3GoiAce1P6+rp/wQhjs=
+github.com/therecipe/qt v0.0.0-20200904063919-c0c124a5770d h1:T+d8FnaLSvM/1BdlDXhW4d5dr2F07bAbB+LpgzMxx+o=
+github.com/therecipe/qt v0.0.0-20200904063919-c0c124a5770d/go.mod h1:SUUR2j3aE1z6/g76SdD6NwACEpvCxb3fvG82eKbD6us=
 github.com/tidwall/gjson v1.18.0 h1:FIDeeyB800efLX89e5a8Y0BNH+LOngJyGrIWxG2FKQY=
 github.com/tidwall/gjson v1.18.0/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
 github.com/tidwall/match v1.1.1/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
@@ -229,6 +241,7 @@ go.etcd.io/bbolt v1.4.2 h1:IrUHp260R8c+zYx/Tm8QZr04CX+qWS5PGfPdevhdm1I=
 go.etcd.io/bbolt v1.4.2/go.mod h1:Is8rSHO/b4f3XigBC0lL0+4FwAQv3HXEEIgFMuKHceM=
 golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190418165655-df01cb2cc480/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.39.0 h1:SHs+kF4LP+f+p14esP5jAoDpHU8Gu/v9lFRK6IT5imM=
@@ -238,7 +251,9 @@ golang.org/x/exp v0.0.0-20251113190631-e25ba8c21ef6/go.mod h1:46edojNIoXTNOhySWI
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/net v0.0.0-20180719180050-a680a1efc54d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190420063019-afa5a82059c6/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200813134508-3edf25e44fcc/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
@@ -251,10 +266,13 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.18.0 h1:kr88TuHDroi+UVf+0hZnirlk8o8T+4MrK6mr60WkH/I=
 golang.org/x/sync v0.18.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190419153524-e8e3143a4f4a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190904154756-749cb33beabd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -280,6 +298,7 @@ golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.26.0 h1:P42AVeLghgTYr4+xUnTRKDMqpar+PtX7KWuNQL21L8M=
 golang.org/x/text v0.26.0/go.mod h1:QK15LZJUUQVJxhz7wXgxSy/CJaTFjd0G+YLonydOVQA=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190420181800-aa740d480789/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

view/.gitignore

@@ -0,0 +1,5 @@
+dist
+view
+*.json
+deploy
+qtbox

view/Makefile

@@ -0,0 +1,13 @@
+dist: deploy/linux/nakv deploy/windows/nakv.exe
+	mkdir -p dist
+	cd deploy/linux && tar -czvf nakv_linux.tar.gz nakv
+	mv deploy/linux/nakv_linux.tar.gz dist/
+	rm -f deploy/windows/nakv_windows.zip
+	cd deploy/windows && zip nakv_windows *.exe
+	mv deploy/windows/nakv_windows.zip dist/
+
+deploy/linux/nakv: $(shell find . -name "*.go")
+	qtdeploy -ldflags="-s -w" -fast build desktop github.com/fiatjaf/nakv
+
+deploy/windows/nakv.exe: $(shell find . -name "*.go")
+	qtdeploy -ldflags="-s -w" -docker build windows_64_static

view/helpers.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"fiatjaf.com/nostr"
+	"fiatjaf.com/nostr/keyer"
+	"fiatjaf.com/nostr/nip19"
+	"fiatjaf.com/nostr/nip46"
+)
+
+func handleSecretKeyOrBunker(sec string) (nostr.SecretKey, nostr.Keyer, error) {
+	if strings.HasPrefix(sec, "bunker://") {
+		// it's a bunker
+		bunkerURL := sec
+		clientKey := nostr.Generate()
+		ctx := context.Background()
+
+		bunker, err := nip46.ConnectBunker(ctx, clientKey, bunkerURL, nil, func(s string) {})
+		if err != nil {
+			return nostr.SecretKey{}, nil, fmt.Errorf("failed to connect to %s: %w", bunkerURL, err)
+		}
+
+		return nostr.SecretKey{}, keyer.NewBunkerSignerFromBunkerClient(bunker), err
+	}
+
+	if prefix, ski, err := nip19.Decode(sec); err == nil && prefix == "nsec" {
+		return ski.(nostr.SecretKey), nil, nil
+	}
+
+	sk, err := nostr.SecretKeyFromHex(sec)
+	if err != nil {
+		return nostr.SecretKey{}, nil, fmt.Errorf("invalid secret key: %w", err)
+	}
+
+	return sk, keyer.NewPlainKeySigner(sk), nil
+}
+
+func decodeTagValue(value string) string {
+	if strings.HasPrefix(value, "npub1") || strings.HasPrefix(value, "nevent1") || strings.HasPrefix(value, "note1") || strings.HasPrefix(value, "nprofile1") || strings.HasPrefix(value, "naddr1") {
+		if ptr, err := nip19.ToPointer(value); err == nil {
+			return ptr.AsTagReference()
+		}
+	}
+	return value
+}

view/main.go

@@ -0,0 +1,229 @@
+package main
+
+import (
+	"encoding/json"
+	"os"
+	"slices"
+	"strings"
+
+	"fiatjaf.com/nostr"
+	"github.com/therecipe/qt/core"
+	"github.com/therecipe/qt/widgets"
+)
+
+var (
+	currentSec   nostr.SecretKey
+	currentKeyer nostr.Keyer
+	tagRows      [][]*widgets.QLineEdit
+	updateEvent  func()
+)
+
+func main() {
+	app := widgets.NewQApplication(len(os.Args), os.Args)
+
+	window := widgets.NewQMainWindow(nil, 0)
+	window.SetMinimumSize2(800, 600)
+	window.SetWindowTitle("nakv")
+
+	centralWidget := widgets.NewQWidget(nil, 0)
+	window.SetCentralWidget(centralWidget)
+
+	mainLayout := widgets.NewQVBoxLayout()
+	centralWidget.SetLayout(mainLayout)
+
+	// private key input
+	secLabel := widgets.NewQLabel2("private key (hex or nsec):", nil, 0)
+	mainLayout.AddWidget(secLabel, 0, 0)
+	secEdit := widgets.NewQLineEdit(nil)
+	mainLayout.AddWidget(secEdit, 0, 0)
+
+	secEdit.ConnectTextChanged(func(text string) {
+		if text == "" {
+			currentSec = nostr.SecretKey{}
+			currentKeyer = nil
+			return
+		}
+		sk, bunker, err := handleSecretKeyOrBunker(text)
+		if err != nil {
+			// TODO: have a field somewhere at the bottom of the screen, below the tabs view, to display errors and other messages
+			currentSec = nostr.SecretKey{}
+			currentKeyer = nil
+			return
+		}
+		currentSec = sk
+		currentKeyer = bunker
+	})
+
+	tabWidget := widgets.NewQTabWidget(nil)
+
+	eventTab := widgets.NewQWidget(nil, 0)
+	reqTab := widgets.NewQWidget(nil, 0)
+
+	tabWidget.AddTab(eventTab, "event")
+	tabWidget.AddTab(reqTab, "req")
+
+	mainLayout.AddWidget(tabWidget, 0, 0)
+
+	// set up event tab
+	layout := widgets.NewQVBoxLayout()
+	eventTab.SetLayout(layout)
+
+	// kind input
+	kindHBox := widgets.NewQHBoxLayout()
+	layout.AddLayout(kindHBox, 0)
+	kindLabel := widgets.NewQLabel2("kind:", nil, 0)
+	kindHBox.AddWidget(kindLabel, 0, 0)
+	kindSpin := widgets.NewQSpinBox(nil)
+	// TODO: set default value to 1
+	kindSpin.SetMinimum(0)
+	kindSpin.SetMaximum(1<<16 - 1)
+	kindHBox.AddWidget(kindSpin, 0, 0)
+	kindSpin.ConnectValueChanged(func(int) {
+		updateEvent()
+	})
+	kindNameLabel := widgets.NewQLabel2("", nil, 0)
+	kindHBox.AddWidget(kindNameLabel, 0, 0)
+
+	// content input
+	contentLabel := widgets.NewQLabel2("content:", nil, 0)
+	layout.AddWidget(contentLabel, 0, 0)
+	contentEdit := widgets.NewQTextEdit(nil)
+	layout.AddWidget(contentEdit, 0, 0)
+	contentEdit.ConnectTextChanged(updateEvent)
+
+	// created_at input
+	createdAtLabel := widgets.NewQLabel2("created at:", nil, 0)
+	layout.AddWidget(createdAtLabel, 0, 0)
+	createdAtEdit := widgets.NewQDateTimeEdit(nil)
+	createdAtEdit.SetDateTime(core.QDateTime_CurrentDateTime())
+	layout.AddWidget(createdAtEdit, 0, 0)
+	createdAtEdit.ConnectDateTimeChanged(func(*core.QDateTime) {
+		updateEvent()
+	})
+
+	// tags input
+	tagsLabel := widgets.NewQLabel2("tags:", nil, 0)
+	layout.AddWidget(tagsLabel, 0, 0)
+	tagsLayout := widgets.NewQVBoxLayout()
+	tagRowHBoxes := make([]widgets.QLayout_ITF, 0, 2)
+	layout.AddLayout(tagsLayout, 0)
+
+	var addTagRow func()
+	addTagRow = func() {
+		hbox := widgets.NewQHBoxLayout()
+		tagRowHBoxes = append(tagRowHBoxes, hbox)
+		tagsLayout.AddLayout(hbox, 0)
+		tagItems := []*widgets.QLineEdit{}
+		y := len(tagRows)
+		tagRows = append(tagRows, tagItems)
+
+		var addItem func()
+		addItem = func() {
+			edit := widgets.NewQLineEdit(nil)
+			hbox.AddWidget(edit, 0, 0)
+			x := len(tagItems)
+			tagItems = append(tagItems, edit)
+			tagRows[y] = tagItems
+			edit.ConnectTextChanged(func(text string) {
+				if strings.TrimSpace(text) != "" {
+					// when an item input has been filled check if we have to show more
+					if y == len(tagRows)-1 {
+						addTagRow()
+					}
+					if x == len(tagItems)-1 {
+						addItem()
+					}
+				} else {
+					// do this when an item input has been emptied: check if we need to remove an item from this row
+					nItems := len(tagItems)
+					if nItems >= 2 && strings.TrimSpace(tagItems[nItems-1].Text()) == "" && strings.TrimSpace(tagItems[nItems-2].Text()) == "" {
+						// remove last item if the last 2 are empty
+						hbox.Layout().RemoveWidget(tagItems[nItems-1])
+						tagItems[nItems-1].DeleteLater()
+						tagItems = tagItems[0 : nItems-1]
+						tagRows[y] = tagItems
+					}
+
+					// check if we need to remove rows
+					nRows := len(tagRows)
+					itemIsFilled := func(edit *widgets.QLineEdit) bool { return strings.TrimSpace(edit.Text()) != "" }
+					if nRows >= 2 && !slices.ContainsFunc(tagRows[nRows-1], itemIsFilled) && !slices.ContainsFunc(tagRows[nRows-2], itemIsFilled) {
+						// remove the last row if the last 2 are empty
+						tagsLayout.RemoveItem(tagRowHBoxes[nRows-1])
+						for _, tagItem := range tagRows[nRows-1] {
+							tagItem.DeleteLater()
+						}
+						tagRowHBoxes[nRows-1].QLayout_PTR().DeleteLater()
+						tagRows = tagRows[0 : nRows-1]
+						tagRowHBoxes = tagRowHBoxes[0 : nRows-1]
+					}
+				}
+				updateEvent()
+			})
+		}
+		addItem()
+	}
+
+	// first
+	addTagRow()
+
+	// output JSON
+	outputLabel := widgets.NewQLabel2("event:", nil, 0)
+	layout.AddWidget(outputLabel, 0, 0)
+	outputEdit := widgets.NewQTextEdit(nil)
+	outputEdit.SetReadOnly(true)
+	layout.AddWidget(outputEdit, 0, 0)
+
+	// function to update the display
+	updateEvent = func() {
+		kind := nostr.Kind(kindSpin.Value())
+		kindName := kind.Name()
+		if kindName != "unknown" {
+			kindNameLabel.SetText(kindName)
+		} else {
+			kindNameLabel.SetText("")
+		}
+		tags := make(nostr.Tags, 0, len(tagRows))
+		for y, tagItems := range tagRows {
+			if y == len(tagRows)-1 && strings.TrimSpace(tagItems[0].Text()) == "" {
+				continue
+			}
+
+			tag := make(nostr.Tag, 0, len(tagItems))
+			for x, edit := range tagItems {
+				text := strings.TrimSpace(edit.Text())
+				if x == len(tagItems)-1 && text == "" {
+					continue
+				}
+				text = decodeTagValue(text)
+				tag = append(tag, text)
+			}
+			if len(tag) > 0 {
+				tags = append(tags, tag)
+			}
+		}
+
+		event := nostr.Event{
+			Kind:      kind,
+			Content:   contentEdit.ToPlainText(),
+			CreatedAt: nostr.Timestamp(createdAtEdit.DateTime().ToMSecsSinceEpoch() / 1000),
+			Tags:      tags,
+		}
+
+		if currentKeyer != nil {
+			// TODO:
+			// call debounced function that calls:
+			// currentKeyer.SignEvent(event)
+			// then the json.Marshal / outputEdit.SetPlainText
+		}
+
+		jsonBytes, _ := json.MarshalIndent(event, "", "  ")
+		outputEdit.SetPlainText(string(jsonBytes))
+	}
+
+	// initial render
+	updateEvent()
+
+	window.Show()
+	app.Exec()
+}